Bacteriology — Flashcards

Flashcard 201: _____ is the only Staph organism that is coagulase +.

Answer: Staph aureus

Flashcard 202: Oroya fever or _____ disease is caused by Bartonella bacilliformis

Answer: Carrions

Flashcard 203: Staphylococcus saprophyticus is part of the normal flora of the _____ and vagina in up to 10% of females

Answer: rectum

Flashcard 204: Salmonella spp. produces _____, which appears as black colonies on Hektoen enteric agar

Answer: hydrogen sulfide (H2S)

Flashcard 205: _____ is often found intracellularly in neutrophils (PMNs)

Answer: Neisseria gonorrhoeae

Flashcard 206: Which Rickettsia spp. (2) are characterized by a rash that starts at the trunk and spreads outwards to the extremities? _____

Answer: Rickettsia prowazekii and Rickettsia typhi

Extra: Centrifugal spread (trunk → extremities): Rickettsia prowazekii (Epidemic typhus) and Rickettsia typhi (Endemic typhus). Centripetal spread (extremities → trunk): Rickettsia rickettsii (Rocky Mountain Spotted Fever).

Flashcard 207: _____ show twitching motility

Answer: Eikenella corrodens

Flashcard 208: _____ have a toxic A component and a B component that binds to cell surfaces

Answer: Exotoxins

Flashcard 209: _____ shows corkscrew motility

Answer: Treponema

Flashcard 210: What animals (2) are the reservoir for Yersinia pestis? _____

Answer: Rats and prairie dogs (rodents)