Micro - Gram Negative Bacteria III Flashcards
yersinia enterocolitica
gram negative rod
another cause of acute gastroenteritis
yersinia pestis
bubonic plague
milk from domestic farm
with fever, diarrhea, RLQ abdomen pain
-yersina enterocolitica
can survive and grown in cold
vibrio cholera
curved gram negative rod with single polar flagella
causes cholera
choleragen
cholera toxin
same action as E. coli LT toxin
increased cAMP - active secretion of NaCl
course of cholera
abrupt onset of watery diarrhea
-rice water
can lead to shock from fluid loss
and eventually death by dehydration
leading cause of diarrhea in Japan
with sushi
vibrio parahaemolyticus
three most common causes of diarrhea
campylobacter jejuni
ETEC
rotavirus
drinking unpasteurized milk
campylobacter jejuni
fever and headache followed a day after by cramps and bloody diarrhea
campylobacter jejuni
most common cause of duodenal ulcers and chronic gastritis
helicobacter pylori
second is aspirin
leading cause of gastric ulcers
aspirin
second is helicobacter pylori
green metallic sheen on EMB
E. coli
weil felix test
test using antibodies against proteus to diagnose rickettsial diseases
pet turtles
salmonella
thiosulfate citrate bile salts sucrose agar
flat yellow colony is vibrio cholera
99% of intestinal flora
gram negative rods of family bacteroidaceae
bacteriodes fragilis
no lipid A - no endotoxin
trauma to abdomen (surgery, car wreck, gunshot wound)
abscesses in peritoneal cavity
-by bacteriodes fragilis
also in OB/GYN patients
black pigment on blood agar
bacteriodes melaninogenicus
necrotizing anaerobic pneumoniases
- aspiration of sputum from mouth
- seizure or drunken patients
periodontal disease
gram positive anaerobes in the mouth, vagina, intestine flora
peptostreptococcus
peptococcus
fusobacterium
necrotizing anaerobic pneumonia
periodontal disease
abdominal and pelvic abscess
otitis media
