Micro

Question 1

what toxin does S. aureus have that can cause bullous impetigo?

Answer 1

exfoliative toxin

Question 2

2 MC causes of impetigo

Answer 2

S. aureus and GAS

Question 3

factors needed to grown H. flu

Answer 3

factor V = NAD

factor X = hematin

Question 4

virulence factor responsible for necrotizing fasciitis in GAS

Answer 4

M protein

Question 5

Method of virulence in M protein

Answer 5

blocks complement activation and inhibits phagocytosis by host organism allowing bacteria to move quickly through the tissue

Question 6

toxin that causes elevated cAMP levels leading to watery diarrhea

Answer 6

heat-labile toxin

Question 7

streptolysin O method of virulence

Answer 7

destroys red and white blood cells

Question 8

chronic mediastinitis

Answer 8

rare complication of infection with Histoplasma capsulatum

Question 9

grows as a yeast inside the human host but a mycelium in the environment

Answer 9

Histoplasma capsulatum

Question 10

endospore filled spherules

Answer 10

cocciodes immitis

Question 11

fungus causing perioral lesions

Answer 11

paracocciodes brasiliensis

Question 12

microbes that use IgA protease

Answer 12

H. flu
Neisseria
Strep pneumo