Vibrio

Question 1

Vibrio

Answer 1

curved, gram negative rods. ocean dwelling. can infect wounds contaminated by seawater.

causes fecal-oral gastroenteritis

Question 2

V. cholerae

Answer 2

fecal-oral transmission, attaches and colonizes the intestines, secretes choleragen that messes with signal transduction to cause diarrhea. antibiotic treatment not necessary.

Question 3

H. pylori

Answer 3

causes stomach ulcers, associated with stomach cancer, produces urease which irritates stomach lining

10-14 day course of 3 antibiotics with Pepto Bismol and proton pump inhibitors

Question 4

Urea Breath test

Answer 4

patients with H. pylori will exhale radiolabeled carbon dioxide

Question 5

choleragen

Answer 5

A-B subunit enterotoxin that interferes with signal transduction, secreted by V. cholerae

Question 6

urease

Answer 6

produced by H pylori, coverts urea to ammonia which neutralizes the stomach acid