true/ primary Flashcards
1
Q
primary pathogens
A
infect health individuals
2
Q
4 main primary pathogens
A
Histoplasma casulatum, Blastomyces dermatidis, Parracoccidioides brasiliensis, Cocciodioides immitis
3
Q
route of infection for primary pathogens
A
inhalation of spores
4
Q
primary pathogens are geographically listed to
A
endemic regions
5
Q
how many people are infected with Histoplasma every year in the USA
A
500,000
6
Q
all primary pathogens are
A
thermally dimorphic
7
Q
at 25 degrees
A
filamentous
8
Q
parasitic yeasts form at
A
37 degrees
9
Q
around 50% of H.capsulatum cases are
A
asymptomatic
10
Q
types of disease caused by primary pathogens
A
asymptomatic, mild respiratory infections, can progress to pulmonary or disseminated infections
11
Q
how many primary fungal infections progress to pulmonary or disseminated infections
A
10-25%
