gram negative curves - bacteriology exam 2

genus of gram negative curves

vibrio, campylobacter, helicobacter

genus of vibrio

cholerae

epidemiology of vibrio

found in water and shellfish, has flagella, facultative anaerobe, requires high dose to infect

virulence factors of vibrio

pilus, exotoxin, other toxins

disease of vibrio without vibrio toxin

diarrhea, vomiting

disease of vibrio with vibrio toxin

diarrhea, vomiting, severe dehydration, metabolic acidosis, hypokalemia, hypovolemic shock

transmission of vibrio

fecal-oral

treatment of vibrio

fluid and electrolyte replacement, antibiotics

prevention of vibrio

sanitation (water quality)

genus of campylobacter

jejuni

epidemiology of campylobacter

normal flora of GI tract in poultry

disease of campylobacter

diarrhea, abdominal pain,

reactive arthritis, guillain-barre syndrome (rare)

virulence factors of campylobacter

molecular mimicry

transmission of campylobacter

contaminated food

treatment of campylobacter

self limiting, fluid and electrolyte replacement

prevention of campylobacter

cooking food properly

genus of helicobacter

pylori

epidemiology of helicobacter

mostly restricted to humans

disease of helicobacter

mainly asymptomatic infections, gastritis, ulcers

virulence factors of helicobacter

motile, ulcers increase localized pH, adhesions, exotoxin, molecular mimicry

transmission of helicobacter

fecal-oral

treatment of helicobacter

proton pump inhibitors, antibiotics (resistance)

prevention of helicobacter

good hygiene