Med Micro PPT 12: Vibrio, Aeromonas, Campylobacter, Heliobacter

vibrio cholera

require salt for growth; gram - curved rods

waterborne, foodborne, and fecal-oral

transmission of vibrio cholera

rice water stool

occurs after exotoxin increases permeability of intestinal membranes to water; voluminous; essentially clear with mucous

vaxchora

vaccine for travelers to endemic area; must be taken 10 days prior to travel

vibrio parahaemolyticus

improperly cooked seafood, oysters, exposure to seawater - common in japan and year round

vibrio vulnificus

improperly cooked seafood, oysters, exposure to seawater - common in the gulf coast and usually in warm months

aeromonas

waterborne, foodborne, and wound infections due to trauma with contaminated water exposure; medicinal leeches

campylobacter

micro-aerobic; mostly acquired from animal or food reservoirs; peak in infants and young children/ 20-40 year olds

campylobacter jejuni

large animal reservior; almost all chicken and turkey are contaminated; 32% pork; rarely cattle; killed by gastric acid - foodborne and have flagella

guillian-barre syndrome

autoimmune disease to myelin cells in the brain; results in nerve damage and paralysis lasting for several weeks - often associated with campylobacter jejuni

campylobacter coli

gastroenteritis - same transmission as C. jejuni

campylobacter uspaliensis

transmission after contact with domestic dogs

campylobacter fetus

spreads from gastrointestinal tract to blood and distal foci - causes gastroenteritis

heliobacter pylori

motile, microaerophilic, only found in humans - fecal-oral/oro-oral/gastro-oral transmission

gastritis

chronic lifelong inflammation of the stomach wall - can be caused by Helicobacter pylori

gastric ulcers

low acid, pan gastritis, high cancer risk

duodenal ulcers

high acid, antral gastritis, low cancer risk

peptic ulcers

over 95% are caused by Helicobacter pylori

MALT lymphoma

mucosal associated lymphoid tissue lymphoma

adenocarcinoma

gastric cancer

Helicobacter fennelliae

associated with gastroenteritis and bacteremia; commonly in HIV patients; also associated with cats