Gram Negative Rods

Question 1

Vibrio

Answer 1

found in aquatic environments

Question 2

Vibrio cholerae

Answer 2

serogrouping (O somatic antigen)
enterotoxin O1 and O139 produces serious diarrhea by stimulating adenylate cyclase
rice water stool

Question 3

Vibrio parahaemolyticus

Answer 3

most common cause food borne intestinal infections from consumption of raw fish or shellfish
wound infections/septicemia

Question 4

Vibrio vulnificus

Answer 4

associated with severe soft tissue infection or septicemia or both
contact with saltwater, ingestion of raw oysters

Question 5

Vibrio alginolyticus

Answer 5

most frequently isolated from ear (otitis media) and wound infections after exposure to water
sometimes eye infection

Question 6

Vibrio cholerae ID

Answer 6

O/129 (S)
VP (+)
0% NaCl (+)

Question 7

Vibrio alginolytic ID

Answer 7

VP (+)

Question 8

Vibrio vulnificus

Answer 8

lactose fermenter

O/129 (S)

Question 9

Aeromonas

Answer 9

normal flora of gut of medicinal leeches

Question 10

Vibrio ID

Answer 10

NaCl required for or stimulates growth
TCBS growth (+)
Sensitivity to O/129

Question 11

Campylobacter

Answer 11

sea gulls on gram stain

Question 12

Campylobacter media

Answer 12

charcoal based medium with antibiotics

skirrow agar

Question 13

Campylobacter jejuni ID

Answer 13

catalase (+)
hippurate (+)
indoxyl acetate (+)

Question 14

Campylobacter coli ID

Answer 14

catalase (+)
indoxyl acetate (+)

Question 15

Campylobacter fetus ID

Answer 15

catalase (+)

Question 16

Helicobacter

Answer 16

inhabit primarily the stomach either within or below the mucus gel layer

Question 17

Helicobacter pylori treatment

Answer 17

legacy triple pump - combination of a proton pump inhibitor and two of amoxicillin, clarithromycin, and metronidazole or tinidazole