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heather.dundas
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budding is similar to what?
binary fission
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any group of parasitic and saprophytic fungi causes cottony growth on organic substances
mold
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aka-systemic fungi
grow as yeast at body temp
grow as mold at room temp
dimorphic
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anthrophillic
found on humans
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zoophillic
found on animals
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all fungi need less _ than bacteria to grow
moisture
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What do they gram stain as?
positive purple
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All yeast follow these sets of characteristics:UGSPBL
- unicellular
- gram +
- spherical/oval in shape
- pasty creamy colonies on agar
- budding
- larger than GPCOC
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What are the 2 possible media to be used on fungi?
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Which media is an all purpose fungal media?
SAB
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SAB stands for
sabourad's dextrose agar
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What are the 6 pathogenic yeasts discussed in class?
CN
HC
CI
BD
CA
MP
- cryptococcus neoformans
- histoplasma capsulatum
- coccidioids immitus
- bastomyces dermatidis
- candidia albicans
- malassezia pachydermatitis
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crytococcus neoformans is commonly seen in
cats
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cryptococcus has thick
walls
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cryptococcus neoformans is surround by wide _ capsules (microscopically)
non-staining
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cryptococcus neoformans is commonly found in _ excreta
avian(pigeons)
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cryptococcus neoformans MOI
inhalation(aerosolized)
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Cryptococcus neoformans causes what in immunocompromised cats?
URI
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Cryptococcus neoformans can also be found in the _ and _
blood and brain
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Cryptococcus neoformans causes - like lesions on the face
tumor
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Histoplasma capsulatum affects
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Histoplasma capsulatum is found in the cystoplasm of
macrophages
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Histoplasma capsulatum is found in the soil of OH,MO,MI, and
the MS river valley
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Histoplasma capsulatum forms
spores
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MOI histoplasma capsulatum
inhalation
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Histoplasma capsulatum is found in _ and - droppings
bird and bat
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CS histoplasma capsulatum:c+, wt loss, anorexia, _ _ and _
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Histoplasma capsulatum for _ _ pattern in the lungs whed radiographed
nodular institial pattern )covering entire lung)
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Coccidioides immitus is what kind of morphic?
dimorphic!
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Coccidioides immitus is found in soil ans _-_ areas like CA,NV,UT,AZ,TX,NM
semi-arid
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Coccidioides immitus can lie dormans for _ to _ and cause infx when animal is immunocompromised
weeks to years
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young _ _ are more predisposed to Coccidioides immitus
male dogs
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What do Coccidioides immitus spores look like when grown at room temp?
square w/ hyphae
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What do Coccidioides immitus spores look like when grown at body temp?
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Is Blastomyces dermatitidis dimorphic?
yes
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Blastomyces dermatitidis is usually found in soil forming _ at room temp
hyphae
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Blastomyces dermatitidis forms
spores
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MOI Blastomyces dermatitidis
inhalation
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Blastomyces dermatitidis forms colonies in
resp tract
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Blastomyces dermatitidis is more common in
hunting dogs
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What are the 3 forms of Blastomyces dermatitidis?PDC
- primary pulmonary
- disseminated dz
- localized dz
- localized cutaneous lesion
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Is Candidia albicans dimorphic?
yes
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Candidia albicans cause what in humans?
thrush
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Candidia albicans causes _ and _ in avians
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Candidia albicans is normal flora in avians until
they become immunocompromised
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Malassezia pachydermatis commonly causes:OD
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dx for Malassezia pachydermatis includes impressions and smears, but never
scrapes
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10% _ can be added to Malassezia pachydermatis samples to get rid of debris
KOH
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