BOLETIM TÉCNICO No. 20 - www.micotoxinas.com.br
MOLD CAN BE FOUND IN MANY AREAS OF YOUR HOME
Compilado da Internet por Homero Fonseca
ESALQ/USP
FONSECA & CIA. S/C LTDA. - ME

If you have a moist basement then you know you have mold. Many people believe once the mold is dried and removed the danger is over. Dried mold particles become airborne and can be breathed in even from your basement through ventilation systems and walls. Breathing in these very toxic particles can cause irreversible lung damage and even infect the body systemically and kill. There are litleraly thousands of different strains of mold.
Absidia
sp.
- A zygomycete fungus which is considered common to the indoor environment. Reported to be
allergenic. May cause mucorosis in immune compromised individuals. The sites of infection
are the lung, nasal sinus, brain, eye, and skin. Infection may have multiple sites.
Absidia cormbifera has been an invasive infection agent in AIDS and neutropenic patients,
as well as, agents of bovine mycotic abortions, and feline subcutaneous abscesses.
Acremonium species may be confused with Fusarium species that primarily produce
microconidia in culture. Fusarium genera are generally much more rapid growers and produce
more aerial mycelium.
Acremonium
sp.
(Cephalosporium sp.) - Reported to be allergenic. Can produce a trichothecene toxin which
is toxic if ingested. It was the primary fungus identified in at least two houses where
the occupant complaints were nausea, vomiting, and diarrhea. Asexual state of
Emericellopsis sp., Chaetomium sp., and Nectripsis sp. It can produce mycetomas,
infections of the nails, onychomycosis, corneal ulcers, eumycotic mycetoma,
endophthalmitis, meningitis, and endocarditis.
Acrodontium
salmoneum
- Reported to be a fairly common airborne fungus and is considered to be allergenic. Can
produce a trichothecene toxin which is toxic if ingested. It was the primary fungus
identified in at least two houses where the occupant complaints were nausea, vomiting, and
diarrhea. It can produce mycetomas, infections of the nails, onychomycosis, corneal
ulcers, eumycotic mycetoma, endophthalmitis, meningitis, and endocarditis. It is the
asexual state of Emericellopsis sp., Chaetomium sp., and Nectripsis sp.
Alternaria
sp.
- Extremely widespread and ubiquitous. Outdoors it may be isolated from samples of soil,
seeds, and plants. It is commonly found in outdoor samples. It is often found in carpets,
textiles, and on horizontal surfaces in building interiors. Often found on window frames.
The species Alternaria alternata is capable of producing tenuazonic acid and other toxic
metabolites which may be associated with disease in humans or animals. Alternaria produces
large spores having sizes between 20 - 200 microns in length and 7 - 18 microns in width,
suggesing that the spores from this fungi are deposited in the nose, mouth, and upper
respiratory tract. It may be related to bakers asthma. It has been associated with
hypersensitivity pneumoniti, sinusitis, deratomycosis, onychomycosis, subcutaneous
phaeohyphomycosis, and invasive infection. Common cause of extrinsic asthma
(immediate-type hypersensitivity: type I). Acute symptoms include edema and
bronchiospasms, chronic cases may develop pulmonary emphysema.
Aphanoascus
fulvescens
- Extremely widespread in soil, animal skin scrapings, and dung. Is often associated with
birds nests and feathers. Should be considered an allergen. This fungus has also been
documented in skin infections. No toxic related diseases are of record to date.
Apophysomyces
elegans
- Extremely widespread in soil and decaying vegetation. Should be considered an allergen.
This fungus has also been documented in various zygomycosis including necrotizing
fascitis, osteomyelitis, and angioinvasion. Most cases are acquired through the tramatic
implantation of the fungus. No toxic related diseases are of record to date.
Arthrinium
phaeospermum
- Widespread saprophyte on dead plant material, particularly swampy grasses. Should be
considered an allergen. This fungus has also been documented in various subcutaneous
infections. No toxic related diseases are of record to date.
Arthrographis
spp.
- Extremely widespread in soil and decaying vegetation. Arthrographis cuboidea and A.
kalrae should be considered to be allergens. A kalrae has been documented in onychomycosis
and has been recovered from the skin, nails, and respiratory sites but has not been
established as an etiological agent. No toxic related diseases are of record to date.
Ascomycete.
-
One of the major classes of fungal organisms. This class contains the the"sac
fungi" and yeasts. Some ascomycete spores can be identified by spore morphology,
however; some care should be excersised with regard to specific identification. Many
ascomycete spores are reported to be allergenic.
Aspergillus
sp.
- A genus of fungi containing approximately 150 recognized species. Members of this genus
have been recovered from a variety of habitats, but are especially common as saprophytes
on decaying vegetation, soils, stored food, feed products in tropical and subtropical
regions. Some species are parasitic on insects, plants and animals, including man. Species
within this genus have reported Aw's (water activities) between 0.75 - 0.82. All of the
species contained in this genus should be considered allergenic. Various Aspergillus
species are a common cause of extrinsic asthma (immediate-type hypersensitivity: type I).
Acute symptoms include edema and bronchiospasms. Chronic cases may develop pulmonary
emphysema. Members of this genus are reported to cause a variety of opportunistic
infections of the ears and eyes. Sever pulmonary infections may also occur. Many species
produce mycotoxins which may be associated with disease in humans and other animals. Toxin
production is dependent on the species or a strain within a species and on the food source
for the fungus. Some of these toxins have been found to be carcinogenic in animal species.
Several toxins are considered potential human carcinogens.
Aspergillus alliaceus- This species is not commonly
reported from nature and is not considered common to indoor environments. It has been
isolated from soils in desert areas, grassland or cultivated soils, cacti, onion, and
garlic bulbs. This fungus should be considered allergenic. No toxic or invasive diseases
have been documented to date.
Aspergillus
auricomus-
This species was originally isolated from an aqueous solution of potassium iodidie. It has
also been isolated from cottonseed in Arizona. This species is not considered common to
indoor environments. This fungus should be considered allergenic. No toxic or invasive
diseases have been documented to date.
Aspergillus
caespitosus -
This species is not considered common to indoor environments. It has been predominantly
isolated from soils but has also been isolated from sugarcane bagesse. This fungus should
be considered allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
caesiellus
- This species is not considered common to indoor environments. It has been predominantly
isolated from soils. This fungus should be considered allergenic. No toxic diseases have
been documented to date. This species has been reported as an opportunistic pathogen.
Aspergillus
candidus
- This species considered common to indoor environments. It occurs predominantely in
tropical and subtropical regions in stored foods and feedstuffs such as wheat, corn,
barely, sorghum, rice, peanuts, dried macaroni and spaghetti, refrigerated dough products,
and flour. It has also been isolated from soils. It has an Aw (water activity) of 0.75 and
Conidia (spores) dimensions 2.5-4 microns. This fungus should be considered allergenic.
This species has been reported as an opportunistic pathogen including onychomycosis,
otomycosis, and invasive aspergillosis. It has also been reported to produce the toxin
petulin which may be associated with disease in humans and other animals.
Aspergillus
carbonarius -
This distinctive species has not been commonly reported. It has been isolated from mud and
wood in mangrove swamps, soil, and polluted water. This species is not considered common
to indoor environments. This fungus should be considered allergenic. No toxic or invasive
diseases have been documented to date.
Aspergillus carneus - This species is not considered common to indoor environments. It has
been predominantly isolated from tropical and subtropical soils. This fungus should be
considered allergenic. No toxic diseases have been documented to date. This species has
been reported as an opportunistic pathogen.
Aspergillus
cervinus
- This species has not been commonly reported. It has been isolated from tropical
rainforest soils in Malaya, Puerto Rico, New Zealand, Wisconsin, and India. This species
is not considered common to indoor environments. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
clavatus -
This distinctive species is a common soil fungus with widespread distribution in soils in
warmer climates. It also is quite widely distributed in some kinds of foods, especially
cereals. This species is not considered common to indoor environments, however; it has
been frequently associated with the brewing industry. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
deflectus -
This species is not considered common to indoor environments. It has been predominantly
isolated from tropical and subtropical soils. This fungus should be considered allergenic.
No toxic diseases have been documented to date. This species has been reported as an
opportunistic pathogen.
Aspergillus
flavipes
- This species may be recovered from indoor environments. It has been predominantly
isolated from tropical and subtropical soils and decaying vegetation, however; it has also
been isolated from deteriorated cotton fabric. This fungus should be considered
allergenic. No toxic diseases have been documented to date. This species has been reported
as an opportunistic pathogen associated with cutaneous aspergillosis and osteomyelitis.
Aspergillus
flavus
- This species may be recovered from the indoor environment. It has worldwide distribution
but is predominantly a tropical to subtropical fungus apparently more common in cultivated
than uncultivated soil. It colonizes on decaying vegetation, crop seeds and many other
substrates. It grows on Asthmay corn and peanuts and can also be found in other foods and
dairy products. It has been reported in water damaged carpets. It has also been reported
as an insect and animal pathogen. This fungus has an Aw (water activity) of 0.78. and
conidia (spores) dimensions 3-6 microns or 3-5 microns. This fungus should be considered
allergenic. Its presence has been associated with reports of asthma. Approximately 50% of
the strains are capable of producing a group of mycotoxins - in the aflatoxin group.
Aflatoxins are known animal carcinogen. There is limited evidence to suggest that this
toxin is also a human carcinogen. The production of the fungal toxin is dependent on the
growth conditions and on the substrate used as a food source. The toxin is poisonous to
humans by ingestion and may directly affect the liver. Experiments have indicated that it
is teratogenic and mutagenic. This fungus may also result in disease via inhalation and is
associated with aspergillosis of the lungs and/or disseminated aspergillosis. This fungus
is occasionally identified as the cause of corneal, otomycotic, and nasoorbital
infections.
Aspergillus
foetidus
- This species is not commonly reported from nature and is not considered common to indoor
environments. It has been used in several industrial processes including koji for shochu
and enzyme production. This fungus should be considered allergenic. No toxic or invasive
diseases have been documented to date.
Aspergillus
fumigatus -
This species may be recovered from the indoor environment. It has worldwide distribution
and grows over a wide range of temperatures. It has been recovered from soils, plants,
seeds, sludge, wood chips, compost, cotton, and penguin excreta. It is commonly found
outdoors in compost piles with temperatures higher than 40 degrees C, in mild to warm
soils and on cereals. This fungus has an Aw (water activity) of 0.82 with an optimum >
0.97. Conidia (spores) have dimensions of 2-3.5 microns. This fungus should be considered
allergenic, however; it should be considered as a principle cause for both invasive and
allergic aspergillosis. This organisms will particularly affect individuals who are immune
compromised. It is considered a true human pathogen. No toxic diseases have been
documented to date.
Aspergillus
japonicus
- This species is not commonly reported from nature and is not considered common to indoor
environments. It has been isolated from subtropical and tropical soils and also submerged
organic debris. This fungus should be considered allergenic. No toxic or invasive diseases
have been documented to date.
Aspergillus
kanagawaensis -
This species is not commonly reported from nature and is not considered common to indoor
environments. It has been isolated from soils in hemlock and jack pine forest in
Wisconsin. Has also been isolated from soils in Japan. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
glaucus -
This species may be recovered from the indoor environment. It has widespread distribution
in subtropical regions. It has been recovered in nature from soils and on plants. This
fungus can grow at low moisture levels and has also been isolated from grains, sugary food
products, meat, wool, dried foods, and leather. It has been reported as a common outdoor
fungus in the winter. The conidia (spores) for this fungus have dimensions of 5-6.5
microns and is the imperfect stage of the ascomycetous fungus Eurotium sp. It is reported
to be allergenic. This species is only occasionally pathogenic and has been associated
with sinusitis, otitis, cerebral, orofacial, and pulmonary infections. No toxic diseases
have been documented to date.
Aspergillus
nidulans
- This species is not considered common to indoor environments. It has been frequently
isolated from tropical and subtropical soils but less frequently from other areas. This
fungus has an Aw (water activity) of 0.78 with conidia (spores) having dimensions of 2-4
microns. It is reported to be allergenic. This species has been reported in a variety of
animal and human infections including invasive and systemic disease including
aspergillosis of the lungs and/or disseminated aspergillosis. It can produce the mycotoxin
sterigmatocysti that has been shown to produce liver and kidney damage in lab animals.
Aspergillus
niger
- This species is considered common to indoor environments. It is widespread in the soil
and on plants and is also considered a common contaminant of foods. It has a musty odor.
It is commonly found in the environment on textiles, in soils, grains, fruits and
vegetables isolated from tropical and subtropical soils but less frequently from other
areas. This fungus has an Aw (water activity) of 0.77 with an optimum > 0.97 . Conidia
(spores) have dimensions of 3.5 - 5 microns or 4 to 5 microns. It is reported to be
allergenic. It is common in secondary organisms following bacterial otitis and is more
commonly being implicated in pulmonary disease in immunocompromised hosts. It has also
been reported to cause skin infections.
Aspergillus
niveus
- This species is not considered common to indoor environments. It has been predominantly
isolated from soils and appears to be widely distributed. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
ochraceus
- This species is considered common to indoor environments. It is widespread in cultivated
soils, but has also been documented in uncultivated soils, grains, and salted food
products. It is not usually associated with decaying vegetation. This fungus has an Aw
(water activity) of 0.77 with conidia (spores) having dimensions of 2.5 - 3 microns. It is
reported to be allergenic. It has not been reported as causing any invasive disease to
date. This fungus can also produce ochratoxin A, which may produce ochratoxicosis in
humans. This is also known as Balkan nephropathy, a disorder that affects the kidneys. The
toxin is produced at optimum growth conditions at 25 degrees C and high moisture
conditions. The ochratoxin may also be produced by other Aspergillus sp. and Penicillium
sp. Other toxins which can be produced by this fungus include penicillic acid,
xanthomegnin and viomellein. These are all reported to be kidney and liver toxins.
Aspergillus
oryzae
- This species may be considered common to some indoor environments. It has been
predominantly isolated from soils, vegetative plant parts, seeds, and cotton fabrics. It
is also used in food fermentations, in the production of saki, shoyu, miso, and soy sauce,
and as a source of industrial enzymes. This fungus should be considered allergenic. No
toxic or invasive diseases have been documented to date.
Aspergillus
ostianus -
This species is not considered common to indoor environments. It has been isolated from
animal feed, chicory seed, and gram seed storage. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
paradoxus
- This species is considered a very uncommon species that is not considered typical of
indoor environments. It has been isolated from opossum dung and soil. This fungus should
be considered allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
parasiticus
- This species is not considered common to indoor environments. It has been isolated from
cultivated soils. Lack of reported isolations may be due in part to the failure of
investigators to differentiate A. parasiticus from A. flavus. It has been isolated more
frequently from seeds, other plants, and insects. This fungus should be considered
allergenic. No invasive diseases have been documented to date. Some strains are capable of
producing a group of mycotoxins - in the aflatoxin group. Aflatoxins are known animal
carcinogen. There is limited evidence to suggest that this toxin is a human carcinogen.
The toxin is poisonous to humans by ingestion. Experiments have indicated that it is
teratogenic and mutagenic. It is toxic to the liver. The production of the fungal toxin is
dependent on the growth conditions and on the substrate used as a food source.
Aspergillus
penicilloides -
This species is not generally considered common to indoor environments, however; this may
be related to its xerophyilic nature (can grow in areas with low water activity) and that
it grows very poorly on usual laboratory media. Therefore, it may often be overlooked in
typical investigations. Reports in the literature are quite rare, however, if suitable
media are used, the species can be recovered in large numbers from a variety of dried
foods, house dust, spices, and cereals. This fungus should be considered allergenic. It
has also been reported as an opportunistic pathogen. No toxic diseases have been
documented to date.
Aspergillus
puniceus
- This species is not commonly reported from nature and is not considered common to indoor
environments. It has been isolated from soils. This fungus should be considered
allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
restrictus -
This species is not generally considered common to indoor environments, however; this may
be related to its slow growing nature. Therefore, it may often be overlooked in typical
investigations. It has been isolated from a variety of subtrates including soil, cotton
goods and fruit juices, and from air. This fungus should be considered allergenic. It has
also been reported as an opportunistic pathogen and associated with endocarditis,
onychomycosis, and pulmonary aspergillosis. No toxic diseases have been documented to
date.
Aspergillus
sclerotiorum -
This species is not considered common to indoor environments. It has been isolated from
tropical and subtropical soils. This fungus should be considered allergenic. No toxic or
invasive diseases have been documented to date.
Aspergillus
sojae
- This species is not considered common to indoor environments. To date, it has only been
isolated from koji fermentations. This fungus should be considered allergenic. No toxic or
invasive diseases have been documented to date.
Aspergillus
sparsis
- This species is not considered common to both outdoor or indoor environments. It has
been isolated from soil. This fungus should be considered allergenic. No toxic or invasive
diseases have been documented to date.
Aspergillus
sydowi
- This species has worldwide distribution. Its primary habitat is the soil, but it has
been reecovered from a variety of other substrates. Found in warmer soil and in grains,
straw, cotton, and decomposing vegetation. It appears to be less common in foods than A.
versicolor. This fungus should be considered allergenic. This fungus is associated with
aspergillosis of the lungs and/or disseminated aspergillosis otomycosis (ear infection)
and onychomycosis (infection of finger or toe nails). This fungus can produce the toxins
patulin and citrinin which may be associated with disease in humans and other animals.
Aspergillus
tamarii -
This species is not considered common to both outdoor or indoor environments. It was
originally isolated from tamari sauce. It is fairly common soil fungus and has been
isolated from seeds of various crops and other substrates. This fungus should be
considered allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus terreus - This fungus has worldwide distribution in soils, but is more
abundant in tropical and subtropical regions rather than temperate regions. It is also
common in cultivated soils and forests than grasslands. It is common in stored crops and
has been isolated from other foodstuffs. It should be considered allergenic. Invasive
bronchopulmonary aspergillosis, onychomycosis, cutaneous, ophthalmic, and disseminated
mycosis have been documented. No toxic or invasive diseases have been documented to date.
Aspergillus unguis - This species is not considered common but have been isolated from a
variety of substrates including man, shoe leather, and sesame seeds. This fungus should be
considered allergenic. No toxic or invasive diseases have been documented to date.
Aspergillus
ustus
- This species is not considered common in habitats other than tropical or subtropical
soils. This fungus should be considered allergenic. This species is only occasionally
pathogenic and has been associated with otitis media, burns, and disseminated infections.
No toxic diseases have been documented to date.
Aspergillus
versicolor
- This is a widely distributed fungus commonly found in soil, hay, cotton, dairy products,
dried cereals, nuts, and especially spices. It is often considered to be one of the most
widely distributed species of Aspergillus. This fungus should be considered allergenic.
This species is pathogenic and has been associated with onychomycosis and invasive
aspergillosis. It can produce a mycotoxin sterigmatocystin and cyclopiaxonic acid. These
toxins can cause diarrhea and upset stomach. It is also reported to be a kidney and liver
carcinogen.
Aspergillus
wentii -
This species is considered common with its main distribution in tropical or subtropical
soils. It has also been isolated from plant litter and seeds. This fungus should be
considered allergenic. This species is only occasionally pathogenic and has been
associated with otitis media, burns, and disseminated infections. No toxic diseases have
been documented to date.
Aureobasidium
pullulans-
A cosmopolitan fungus with the main habitat apparently on the aerial parts of plants.
Frequently found in moist environments. This fungus should be considered allergenic. This
species has been associated with deratitis, peritonitis, pulmaonary infection, and
invasive disease in AIDS patients. Probably aquired by traumatic implantation. May be
recovered as a contaminant from human cutaneous sites. No toxic diseases have been
documented to date.
Basidiomycetes
- One of the major classes of fungal organisms. This class contains the mushrooms, shelf
fungi, puffballs, and a variety of other macrofungi. It is extremely difficult to identify
a specific genera of mushrooms by using standard culture plate techniques. Some
basidiomycete spores can be identified by spore morphology, however; some care should be
exercised with regard to specific identification. Many basidiomycete spores are reported
to be allergenic.
Basidiobolus
-
Has been isolated from decaying plants, soil, and from the fecal materials of frogs,
reptiles, fish, and bats. The relationship of these organisms to human occupied spaces
potentiallly suggests a common present of this genera of fungi in the indoor environments.
Should be considered allergenic. Basidiobolus ranarum rarely causes disease, but has
prinicipally been involved with trunk and extremity infection of children in tropical
countries. No toxic diseases have been documented to date.
Beauveria
- Widespread in the soil with various species being parasites of insects, the most notable
geing Beauveria bassiana which affects the silkworm. Not considered to be common to indoor
environments. Should be considered allergenic. Reported to cause mycotic keratitis and
occasional pulmonary infections. No toxic diseases have been documented to date.
Bipolaris
sp.
- A widespread fungus that is most frequently associated with grasses, plant material,
decaying food, and soil. It is common to both indoor and outdoor environments. Older
obsolete names include Drechslera and Helminthosporium. This fungus produces large spores
which would be expected to be deposited in the upper respiratory tract. Various species of
this fungus can produce the mycotoxin - sterigmatocystin which has been shown to produce
liver and kidney damage when ingested by laboratory animals.
Bipolaris
australiensis -
A widespread fungus that is most frequently associated with grasses, plant material, and
soil. Should be considered allergenic. Has also been reported as an infrequent agent of
phaeohyphomycosis, particularly fungal sinusitis. It can occasionally cause a corneal
infection of the eye.
Bipolaris cynodontis. - A widespread fungus that is most
frequently associated with bermuda grass. Recoveries have been made from human sinus and
eyes, however; its exact role as a etiological agent remain unclear.
Bipolaris hawaiiensis - A widespread fungus that is most
frequently associated with grasses, plant material, and soil. Should be considered
allergenic. Common etiologic agent in fungal sinusitis. Also reported cases of pulmonary
and cerebral disease, menigoencephalitis, and endophthalmitis. This organisms appears to
be extremely agressive in some settings, possibly neutrotropic.
Bipolaris spicifera - A widespread fungus that is most
frequently associated with grasses and plant material, and soil. Should be considered
allergenic. Common etiologic agent in fungal sinusitis. Also been reported as an agent of
phaeohyphomycosis, particularly fungal sinusitis. Disease also includes endocarditis,
keratitis, osteomyelitis, peritonitis, and meningoencephalitis. This is the most common
Bipolaris species implicated in human disease.
Blastomyces sp. - Blastomyces dermatitidis- Rare
environmental isolates have been found in moist soil with high organic content. Important
human pathogen. It is a thermally dimorphic fungus which has filamentous fungus when grown
at 25 degrees C and a yeast form at 37 degrees C. Causes Blastomycosis in humans and
animals involving pulmonary invasion, followed by cutaneous, osteoarticular and
genitourinary disease. No toxic diseases have been documented to date.
Blastoschizomyces sp. - Blastoschizomyces capitatus found
in the soil, beach sand, as a normal flora of the skin, respiratory and digestive tracts
of humans. Invasive and disseminated infections have been reported in immunocompromised
patients. Cases of encephalitis and osteomyelitis have also been reported. No toxic
diseases have been documented to date.
Botrytis sp. - It is parasitic on plants, vegetables, and soft fruits but may also be
found in soil. Reported to be allergenic. No toxic or invasive diseases have been
documented to date.
C
Candida sp. - This genus contains a variety of organisms
that have been isolated from the environment, as well as human skin and mucous membranes.
Candida albicans - Found in animals and in man. Has been
isolated from the skin and mucosa of man, but has also been recovered from leaves,
flowers, water, and soil. Reported to be allergenic. A common cause of superficial
infection, oral and vaginal infection, sepsis, and disseminated disease. Cells from the
organism are usually not airborne and are considered to be a normal component of the flora
of mouth and other mucous membranes in the body. Thrush and other diseases caused by
Candida albicans usually occur after prolonged treatment with antibiotics or steroids. No
toxic diseases have been documented to date.
Candida ciferrii - Found in soils. Considered to be
allergenic. A common cause of superficial infection isolated from ears, skin, nails, and
eyes. No toxic diseases have been documented to date.
Candida glabrata - Found associated with man, mammals,
birds, fruit juices, and insects. Considered to be allergenic. Implicated in sepsis,
persistent urinary tract infections, and refracatory vaginitis. A major emerging pathogen
in nosocomial disease. No toxic diseases have been documented to date.
Candida guilliermondii - Found associated with man and
other mammals, brewery products, vegetation, and insects. Considered to be allergenic.
Implicated in sepsis, urinary tract infections, respiratory speciments, brain abscesses,
skin and nail cultures. No toxic diseases have been documented to date.
Candida kefyr - Found in grains, dairy products, man and
other mammals. Considered to be allergenic. Rare cause of human mycoses. May cause blood
sepsis, invasive disease, and vaginitis, and urinary tract infections. No toxic diseases
have been documented to date.
Candida krusei - Found in air samples, dairy products,
soil, man and other mammals. Considered to be allergenic. Involved in sepsis and
disseminated, invasive disease, includingendocarditis, peritonitis, vaginitis, and urinary
tract infections. No toxic diseases have been documented to date.
Candida lambica - Found in dairy products, fruit juice,
water, birds, and man. Considered to be allergenic.
Candida lipolytica - Found in man and other mammals, corn,
olives, and hydrocarbons. Considered to be allergenic. Implicated in sepsis,
thrombophlebitis, and chronic sinusitis. No toxic diseases have been documented to date.
Candida lusitaniae - Found in man and other mammals, birds,
citris fruits, and pears. Considered to be allergenic. Implicated in sepsis, especially in
immunocompromised patients with underlying malignancy, and urinary tract infection. No
toxic diseases have been documented to date.
Candida parapsilosis - Found in man and other mammals, tea,
fruit juices, and water. Considered to be allergenic. Implicated in sepsis. Associated
with burn infections and endocarditis. No toxic diseases have been documented to date.
Candida rugosa - Found in dairy products, feces, seawater,
and insects. Considered to be allergenic. Implicated in sepsis. Implicated in fungemia,
burn infection, and glandular infections in cattle. No toxic diseases have been documented
to date.
Candida tropicalis - Found in humans and other mammals,
fruit, and water. Considered to be allergenic. Considered a true pathogen of
immunocompromised hosts. Implicated in sepsis, wound infections, neonatal infections, and
disseminated deep tissue infections. No toxic diseases have been documented to date.
Candida zeylanoides - Found in humans, soil, meat, fish,
and water. Considered to be allergenic. Implicated in sepsis, endocarditis, fungal
arthritis, skin and nail infections. No toxic diseases have been documented to date.
Cephalosporium sp. - See Acremonium sp.
Chaetomium sp. - Large ascomycetous fungus producing
perithecia. It is found on a variety of substrates containing cellulose including paper
and plant compost. It can be readily found on the damp or water damaged paper in
sheetrock.
Chaetomium atrobrunneum - This fungus is found in the soil,
air, and on plant debris. Should be considered as allergenic. Has been implicated in fatal
systemic mycoses. The thermophilic, neurotropic nature of this organisms suggests it is a
potentially agressive pathogen. No toxic diseases have been documented to date.
Chaetomium globosum - This fungus is found in the soil, air
and on plant debris. Should be considered as allergenic. Is considered an agent of
onychomycosis, peritonitis, and cutaneous lesions. Has been implicated in fatal systemic
mycoses. No toxic diseases have been documented to date.
Chaetomium strumarium - This fungus is common in warm soil
and on plant debris. Should be considered as allergenic. Has been implicated in fatal
brain abscesses in drug abusers. No toxic diseases have been documented to date.
Chrysosporium spp. - Widespread, common in the soil and on
plants. Rare agents of onychomycosis, skin lesions, endocarditis, and uncommon agents of
the pulmonary mycosis adiaspiromycosis. No toxic diseases have been documented to date.
Cladophialophora spp. - Widespread, common in the soil and
on plant debris. C. bantiana has been reported as a neurotropic agent causing cerebral
phaeohyphomycosis in the form of brain abscesses. Skin lesions have also been reported.
The organisms has also been recovered from pulmonary sites. C. boppii has been associated
with skin lesions and a possible cause of chromoblastomycosis. C. carrionii is almost
exclusively associated with chromoblastomycosis, which is generally restricted to
subtropical areas. Most patients have had long-term soil exposure with repeated trauma and
tissue injuries to the feet and legs. No toxic diseases have been documented to date.
Cladosporium sp. (Hormodendrum sp.) - Aw (water activity)
in the range of 0.84 to 0.88. Most commonly identified outdoor fungus. The outdoor numbers
are reduced in the winter. The numbers are often high in the summer. Often found indoors
in numbers less than outdoor numbers. It is a common allergen. Indoor Cladosporium sp. may
be different than the species identified outdoors. It is commonly found on the surface of
fiberglass duct liner in the interior of supply ducts. A wide variety of plants are food
sources for this fungus. It is found on dead plants, woody plants, food, straw, soil,
paint and textiles. It can cause mycosis. Produces greater than 10 antigens. Antigens in
commercial extracts are of variable quality and may degrade within weeks of preparation.
Common cause of extrinsic asthma (immediate-type hypersensitivity: type I). Acute symptoms
include edema and bronchiospasms, chronic cases may develop pulmonary emphysema.
Cladosporium cladosporioides - Widespread distribution.
Together with C. herbarum compose the most common species on dead organic matter and in
the air. It is found on dead plants, woody plants, food, straw, soil, paint and textiles.
Reported allergen. Has been implicated in pulmonary and cutaneous infections, possible
sinus infection, mixed disseminated infections. No toxic diseases have been documented to
date.
Cladosporium herbarum - Widespread distribution. Together
with C. cladosporioides compose the most common species on dead organic matter and in the
air. It is found on dead plants, woody plants, food, straw, soil, paint, and textiles.
Reported allergen. Has been implicated in cutaneous infections and keatitis. No toxic
diseases have been documented to date.
Cladosporium macrocarpum - Common species on dead organic
matter and in the air. It is found on dead plants, woody plants, food, straw, soil, paint,
and textiles. Reported allergen. No toxic or invasive diseases have been documented to
date.
Cladosporium sphaerospermum - Worldwide distribution.
Considered a secondary invader of plants, textiles, food and is common to the soil, and
air. Reported allergen. Implicated in skin lesions, corneal ulcer, and onychomycosis.
Cladosporium
fulvum
(Fulvia fulva) - Conidia (spores) dimensions 12-47 x 4-10 microns. It
is found on the leaves of tomatoes.
Cryptostroma
corticale
- Conidia (spores) dimensions 4-6.5 x 3.5-4 microns. Found
on the bark of maple and sycamore trees and on stored logs.
Conidobolus sp. - Can cause a chronic inflammatory disease
of the nasal mucosa (entomophthoromycosis).
Cunninghamella sp. - Can cause disseminated and pulmonary
infections in immune compromised hosts.
Curvularia sp. - Reported to be allergenic. It may cause
corneal infections, mycetoma and infections in immune compromised hosts.
D
Dreschlera sp. - Conidia (spores) dimensions 40-120 x 17-28
microns. Found
on grasses, grains and decaying food. It can occasionally cause a corneal infection of the
eye.
E
Emericella nidulans - A ubiquitous soil fungus. Most often
isolated from tropical and subtropical climates. Perfect stage of Aspergillus
nidulans. This fungus should be considered allergenic. No toxic or invasive
diseases have been reported to date.
Emericella quadrillineata- A ubiquitous soil fungus. Most
often isolated from tropical and subtropical climates. Perfect stage of Aspergillus
tetrazonus. This fungus should be considered allergenic. No toxic or invasive diseases
have been reported to date.
Emericella rugulosa- A relatively uncommon species most
commonly isolated from soil. Perfect stage of Aspergillus rugulovalvus. This fungus should
be considered allergenic. No toxic or invasive diseases have been reported to date.
Epicoccum
sp.
- Conidia (spores) dimensions 15-25 microns. A
common allergen. It is found in plants, soil, grains, textiles, and paper products.
Epidermophyton sp. - Can cause infections of skin and
nails.
Eurotium
amstelodami
- This fungus is frequently encountered in tropical and subtropical regions. It is
frequently reported from soils and dried or concentrated food products. It is the perfect
stage of Aspergillus amstelodami. This fungus should be considered allergenic. No toxic or
invasive diseases have been reported to date.
Eurotium chevalieri - This fungus is frequently encountered
in tropical and subtropical regions. It is frequently reported from soils and dried or
concentrated food products, leather goods, cotton, seeds, and other dried products. The
fungus is considered to be a xerophile. It is the perfect stage of Aspergillus chevalieri.
This fungus should be considered allergenic. No toxic or invasive diseases have been
reported to date.
Eurotium rubrum - This fungus is frequently encountered in
tropical and subtropical regions. It is frequently reported from soils and dried or
concentrated food products, leather goods, cotton, seeds, and other dried products. The
fungus is considered to be a xerophile. It is the perfect stage of Aspergillus
rubrobrunneus. This fungus should be considered allergenic. No toxic or invasive diseases
have been reported to date.
F
Fusarium solani - Aw (water activity) 0.90. Macroconidia
(spores) dimensions 27-52 x 4.4-6.8; Microconidia dimensions 8-16 x 2-4 microns. Found
in plants and soils. Can produce trichothecene toxins which may be associated with disease
in humans and animals.
Fusarium sp. - Aw (water activity) 0.90. A common soil
fungus. It is found on a wide range of plants. It is often found in humidifiers. Several
species in this genus can produce potent trichothecene toxins (5, 27). The trichothecene
(scirpene) toxin targets the following systems: circulatory, alimentary, skin, and
nervous. Produces vomitoxin on grains during unusually damp growing conditions. Symptoms
may occur either through ingestion of contaminated grains or possibly inhalation of
spores. The genera can produce hemorrhagic syndrome in humans (alimentary toxic aleukia).
This is characterized by nausea, vomiting, diarrhea, dermatitis, and extensive internal
bleeding. Reported to be allergenic. Frequently involved in eye, skin and nail infections.
G
Geotrichum sp. - Aw (water activity) 0.90. Conidia
(spores) dimensions 6-12 x 3-6 microns. Aw
(water activity) 0.90. A common contaminant of grains, fruits, dairy products, paper,
textiles, soil and water, and often present as part of the normal human flora. The species
Geotrichum candidum can cause a secondary infection (geotrichosis) in association with
tuberculosis. This rare disease can cause lesions of the skin, bronchi, mouth, lung, and
intestine.
Gliocladium sp. - A fungus which is structurally similar to
Penicillium sp. It is reported to be allergenic.
H
Helminthosporium sp. - Reported to be allergenic.
Histoplasma sp. - A fungus which has filamentous growth at
25 degrees C and yeast growth at 37 degrees C. It is reported to be a human pathogen. It
may be associated with birds.
Humicula sp. - Grow on products with a high cellulose
content. These fungi are also found in soil and on plant debris.
Hyaline Mycelia - Sterile mycelia which is white or
transparent. No fruiting structures are produced by the mycelia. Visual identification of
these organisms is not possible. Often associated with allergic symptoms.
I-L, still under construction
M
Microsporum sp. - Causes ringworm in humans.
Monilia sp. - Reported to be allergenic. This fungus
produces soft rot of tree fruits. Other members produce a red bread Asthma. It is
infrequently involved in corneal eye infections.
Mucor sp. - Often found in soil, dead plant material, horse
dung, fruits, and fruit juice. It is also found in leather, meat, dairy products, animal
hair, and jute. A Zygomycetes fungus which may be allergenic (skin and bronchial tests)
(7, 17). This organism and other Zygomycetes will grow rapidly on most fungal media. May
cause mucorosis in immune compromised individuals. The sites of infection are the lung,
nasal sinus, brain, eye, and skin. Infection may have multiple sites.
N
Nigrospora sp. - Reported to be allergenic.
O, still under construction
P
Paecilomyces sp. - Commonly found in soil and dust, less
frequently in air. P. variotii can cause paecilomycosis. Linked to wood-trimmers disease
and humidifier associated illnesses. They are reported to allergenic. Some members of this
genus are reported to cause pneumonia. It may produce arsine gas if growing on arsenic
substrate. This can occur on wallpapers covered with paris green.
Papulospora sp. - This fungi is found in soil, textiles,
decaying plants, manure, and paper.
Penicillium sp. - Aw (water activity) 0.78 - 0.88. A wide
number of organisms have placed in this genera. Identification to species is difficult.
Often found in aerosol samples. Commonly found in soil, food, cellulose, and grains (17,
5). It is also found in paint and compost piles. It may cause hypersensitivity pneumonitis
and allergic alveolitis in susceptible individuals. It is reported to be allergenic (skin)
(7, 17). It is commonly found in carpet, wallpaper, and in interior fiberglass duct
insulation (NC). Some species can produce mycotoxins. Common cause of extrinsic asthma
(immediate-type hypersensitivity: type I). Acute symptoms include edema and
bronchiospasms, chronic cases may develop pulmonary emphysema.
Periconia sp. - No information available, more to come.
Phoma sp. - A common indoor air allergen. It is similar to
the early stages of growth of Chaetomium sp. The species are isolated from soil and
associated plants (particularly potatoes). Produces pink and purple spots on painted walls
(3, 17). It may have antigens which cross-react with those of Alternaria sp. It will grow
on butter, paint, cement, and rubber. It may cause phaeohyphomycosis, a systematic or
subcutaneous disease.
Pithomyces sp. - Grows on dead grass in pastures. Causes
facial eczema in ruminants.
Q, still under construction
R
Rhizomucor sp. - The Zygomycetous fungus is reported to be
allergenic. It may cause mucorosis in immune compromised individuals. It occupies a
biological niche similar to Mucor sp. It is often linked to occupational allergy. The
sites of infection are the lung, nasal sinus, brain, eye, and skin. Infection may have
multiple sites.
Rhizopus sp. - The Zygomycetous fungus is reported to be
allergenic. It may cause mucorosis in immune compromised individuals. It occupies a
biological niche similar to Mucor sp. It is often linked to occupational allergy. The
sites of infection are the lung, nasal sinus, brain, eye, and skin. Infection may have
multiple sites.
Rhodotorula sp. - A reddish yeast typically found in moist
environments such as carpeting, cooling coils, and drain pans. In some countries it is the
most common yeast genus identified in indoor air. This yeast has been reported to be
allergenic. Positive skin tests have been reported. It has colonized in terminally ill
patients.
S
Saccharomyces sp. - Reported to be allergenic. Baker's
Yeast.
Scopulariopsis sp. - It may produce arsine gas if growing
on arsenic substrate. This can occur on wallpapers covered with paris green. It has been
found growing on a wide variety of materials including house dust. It is associated with
type III allergy.
Serpula lacrymans - Common cause of extrinsic asthma
(immediate-type hypersensitivity: type I). Acute symptoms include edema and
bronchiospasms; chronic cases may develop pulmonary emphysema.
Sporobolomyces sp. - Reported to be allergenic.
Sporothrix sp. - Can cause sporotrichosis. Usually only in
populations which are immune compromised.
Sporotrichum sp. - Reported to be allergenic. See also
Sporothrix sp. as there is some taxonomic confusion between these two genera. This genera
does not cause sporotrichosis.
Stachybotrys
sp.
- Aw (water activity) - 0.94, optimum Aw (water activity) - >0.98. Several strains of
this fungus (S. atra, S. chartarum and S. alternans are synonymous) may produce a
trichothecene mycotoxin- Satratoxin H - which is poisonous by inhalation. The toxins are
present on the fungal spores. This is a slow growing fungus on media. It does not compete
well with other rapidly growing fungi. The dark colored fungi grows on building material
with a high cellulose content and a low nitrogen content. Areas with relative humidity
above 55% and are subject to temperature fluctuations are ideal for toxin production.
Individuals with chronic exposure to the toxin produced by this fungus reported cold and
flu symptoms, sore throats, diarrhea, headaches, fatigue, dermatitis, intermittent local
hair loss, and generalized malaise. The toxins produced by this fungus will suppress the
immune system affecting the lymphoid tissue and the bone marrow. Animals injected with the
toxin from this fungus exhibited the following symptoms: necrosis and hemorrhage within
the brain, thymus, spleen, intestine, lung, heart, lymph node, liver, and kidney. The
mycotoxin is also reported to be a liver and kidney carcinogen. Affects by absorption of
the toxin in the human lung are known as pneumomycosis. This organism is rarely found in
outdoor samples. It is usually difficult to find in indoor air samples unless it is
physically disturbed. The spores are in a gelatinous mass. Appropriate media for the
growth of this organism will have a high cellulose content and a low nitrogen content. The
spores will die readily after release. The dead spores are still allergenic and toxigenic.
Percutaneous absorption has caused mild symptoms.
Stemphylium sp. - Reported to be allergenic. Isolated from
dead plants and cellulose materials.
Syncephalastrum sp. - Can cause a respiratory infection
characterized by a solid fungal ball.
T
Trichoderma sp. - It is commonly found in soil, dead trees,
pine needles, paper, and unglazed ceramics. It often will grow on other fungi. It produces
antibiotics which are toxic to humans. It has been reported to be allergenic (7, 17). It
readily degrades cellulose.
Trichophyton sp. - Can cause ring worm, athlete's foot,
skin, nail, beard, and scalp (5, 6). Reported to be allergenic. Found on soil and skin.
Trichothecium sp. - Aw (water activity) 0.90. Conidia
(spores) dimensions 12-23 x 8-10 microns. Found
in decomposing vegetation, soil, corn seeds, and in flour. The species Trichothecium
roseum can produce a trichothecene toxin which may be associated with disease in humans
and other animals. Reported to be allergenic.
Tritirachium sp. - Reported to be allergenic.
U
Ulocladium sp. - Has an Aw (water activity) of 0.89.
Isolated from dead plants and cellulose materials. Found on textiles.
V
Verticillium sp. - Conidia (spores) dimensions 2.3-10 x
1-2.6 microns. Found
in decaying vegetation, on straw, soil, and arthropods. A rare cause of corneal
infections.
W
Wallemia sp. - Has an Aw (water activity) of 0.75. Conidia
(spores) dimensions 2.5-3.5 microns. Found
in sugary foods, salted meats, dairy products, textiles, soil, hay, and fruits.
X, still under construction
Y
Yeast - Various yeasts are commonly identified on air
samples. Some yeasts are reported to be allergenic. They may cause problems if a person
has had previous exposure and developed hypersensitivity. Yeasts may be allergenic to
susceptible individuals when present in sufficient concentrations.
Z, still under construction
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Molds
reproduce by making spores that usually cannot be seen without magnification. Mold spores waft through the indoor and outdoor air
continually. When mold spores land on a damp spot
indoors, they may begin growing and digesting whatever they are growing on in order to
survive. Molds gradually destroy the things they grow on.
Molds gradually destroy the things they grow on.
Prevent damage to building materials and furnishings, save money, and avoid potential
health risks by controlling moisture and eliminating mold growth.
Many
types of molds exist. All molds
have the potential to cause health effects. Molds can
produce allergens that can trigger allergic reactions or even asthma attacks in people
allergic to mold. Others are known to produce potent
toxins and/or irritants. Potential health concerns are an important reason to prevent mold growth and to remediate/clean up any existing indoor mold growth.
Using
an ozone generator can help eliminate and control mold growth in your home.
Only
by the removal of the visible molds,
disinfection of surfaces, the gaseous cleansing ozone
provides can illnesses from molds
contamination be avoided.
Ozone
generators reduce or eliminate the ability for the exposed mold,
mildew and fungus to grow.
Mold and mildew grow in dark and humid places where there is a lack of oxygen.
Ozone
acts 3000 times faster than chlorine as a bactericide, and it is the strongest
oxidant commercially available for air & water treatment.
One of the best features of
ozone is its ability to control odors by killing the offending organisms