Term
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Definition
- Eastern and central US
- natural reservoir in soil
- in dogs and humans, sometimes siamese cats
- inhalation of conidia
- grows in lung in yeast form, spread via hematogenous
- bone can become infected
- chronic cough, shortness of breath
- Dx by culture
- Tx antifungal agents
- frequently will recur |
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Term
|
Definition
- midwestern US
- in soil, associated with bird and bat droppings
- conidia are inhaled, yeast form grows in lungs
- granuloma formation, disease similar to blastomyces |
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Term
|
Definition
- in hot desert soils of Southwest US
- " Valley Fever"
- inhalation of arthroconidia
- in sheep, cattle, dogs, and humans
- fatal
- lymph nodes- granulomas, can go to liver, brain, spleen, bones and kidneys |
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Term
Aspergillus
opportunistis mycoses
A. fumigatus |
|
Definition
- most common in poultry and caged birds, sheep, calves and horses also involved
- can cause abortions
- inhalation of conidia
- grow in animal as hyphae
- hematogenous spread-inflammation of bld vessel, emboil
- blood stained sputum-frequently observed
-can cause hypersensitivity reactions
- AFLATOXINS--cause necrosis, cirrhosis, carcinomas in liver---don't sniff on a plate! |
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Term
Candida
opportunistic myocoses
Candida albicans
|
|
Definition
-yeast form infective and found in animals
-starts as commensal-->overgrowth-->cutaneous mucosal surfaces- GI and genital, can become systemic
- also normal flora of oral cavity, GI, and genital tracts
- immunosuppressed individuals predisposed
- Virulence factors: adhesins, extracellular proteases, lipases/phospholipases
-white stuff on tongue! |
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Term
|
Definition
- in pigeon droppings
- in soil as mold form, yeast form is in infections, capsule
required for disease
- inhalation of mold form, or direct invasion of skin poss.
- hematogenous spread
- DOGS AND CATS infection in pharynx and paranasal sinuses
- lesion on head and neck
-CNS common site, low MW nitrogen containing compounds needed for growth
- little inflammation, capsule in tissue-inhibits phagocytosis
-produces melanin--protects fungal cells |
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