ch 16, Vibrios, campylobacters, wolinella

Question 1

What does vibrio cholerae cause?

Answer 1

cholera with a watery diarrhea

Question 2

vibrio choleraes habitat

Answer 2

water contaminated with faeces from carriers

Question 3

vibrio cholerae’s charecteristics

Answer 3

Gram neg, comma shaped bacilli with a flagellum

Question 4

Serotyping of vibrio cholerae is by what antigen?

Answer 4

O, which is subdivided into Dgawa, inaba, and El tor

Question 5

Describe pathogenicity of vibrio cholerae

Answer 5

Enterotoxin binds mucosal cells which activaes adenylate cyclase which increases adenosine monophosphate which causes electrolytes and water exretion leading to dehydration

Question 6

Vibrio parahaemolyticus is obtained by..

Answer 6

improperly cooked seafood

Question 7

Which campylobacter is most common and which is found inperiodontal disease sites?

Answer 7

C. jejuni, C. rectus

Question 8

what do campylobacters look like?

Answer 8

seagull shaped gram neg. rods with flagellum

Question 9

where does c. jejuni grow best?

Answer 9

microaerophilic and thermophilic areas

Question 10

Campylobacter pathogenicity

Answer 10

mainly gastroenteritis but causes guilain-bar syndrome( attacks nerves), meningitis, endocarditis, bacteraemia

Question 11

what does helicobacterpylori cause?

Answer 11

gastric ulcers

Question 12

What does wolinella require to grow?

Answer 12

formate and fumarate

Question 13

main species of wolinella is

Answer 13

W. succinogenes

Question 14

habitat of wolinella is

Answer 14

gingival sulcus

Question 15

pathogenicity of wolinella

Answer 15

alveolarbone loss