VIBRIO Flashcards

(52 cards)

1
Q

infection may play a role in Guillain-Barré
syndrome (GBS)

A

CAMPYLOBACTER

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2
Q

can cause ulcers and has been linked to gastric
carcinoma.

A

HELICOBACTER PYLORI

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3
Q

Commonly found in a wide variety of aquatic
environments, including fresh water, brackish or
estuarine water, and marine or saltwater

A

VIBRIO

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4
Q

cause a devastating diarrheal
disease: Cholera

A

v. CHOLERA

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5
Q

4 v

A

● V. cholerae
● V. parahaemolyticus
● V. vulnificus
● V. alginolyticus

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6
Q

the risk of infection from all Vibrio
spp. can be reduced by the avoidance of
eating _______,
particularly in warmer summer months

A

raw or undercooked shellfish

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7
Q

Pandemics (worldwide epidemics) of cholera,
a devastating diarrheal disease caused by V.
cholerae, have been documented since __

A

1817

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8
Q

● Factors to consider when identifying Vibrio infection:

A
  1. Recent consumption of raw seafood (especially
    oysters)
  2. Recent immigration or foreign travel
  3. Gastroenteritis with cholera-like or rice-water
    stools
  4. Accidental trauma incurred during contact with
    fresh, estuarine, or marine water or associated
    products (e.g., shellfish, oyster or clam shells,
    fish hooks)
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9
Q

Curved (comma) or pleomorphic gram-negative rods

A

vibrio

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10
Q

Asporogenous

A

vibrio

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11
Q

vibrio in broth -

A

In broth – possess polar, sheathed flagella

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12
Q

vibrio in solid media

A

In solid media – peritrichous, unsheathed flagella

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13
Q

is vibrio facultative anaerobe?

A

yes

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14
Q

vibrio catalase negative except for

A

V. metschnikovii

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15
Q

oxidase positive except for

A

V. metschnikovii)

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16
Q

Reduce nitrate to nitrite

A

V. metschnikovii

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17
Q

___Fermenter

A

Glucose

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18
Q

Do not grow on what agar

A

Do not grow on MAC

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19
Q

routine media used

A

tcbs

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20
Q

Most species exhibit a positive string test including V.
cholerae

A

vibrio

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21
Q
  • Observed as a mucoid “stringing” reaction after
    emulsification of colonies in
A

0.5% sodium
desoxycholate

22
Q

All species are halophilic or “salt-loving” (except for

A

V.
cholerae and V. mimicus

23
Q

Three major subgroups of V. cholerae

A

V. cholerae O1,
V. cholerae O139,
V. cholerae non-O1

24
Q

All of which share a common flagellar (H) antigen and
somatic (O) antigen

25
Based on the composition of O antigen, V. cholerae O1 organisms are divided into the following serotypes: ogawa
india
26
Based on the composition of O antigen, V. cholerae O1 organisms are divided into the following serotypes: inaba
philippines
27
Based on the composition of O antigen, V. cholerae O1 organisms are divided into the following serotypes: hikojima
japan
28
causative agent of cholera (aka Asiatic cholera or epidemic cholera)
V. cholerae O1
29
It has been a disease of major public health significance for centuries. Most epidemics occur in developing countries, in which it is endemic;
vibrio cholerae
30
cholera is prevalent in what places
bengal region of india and bangladesh
31
● Spread through contaminated water
cholera
32
The disease manifests in acute cases as a severe gastroenteritis accompanied by vomiting and followed by diarrhea
cholera
33
Rice watery stool (contain mucus flecks) that can rapidly lead to dehydration and death
cholera
34
responsible in disease of cholera
Cholera toxin, or choleragen
35
Treatment and management of cholera:
intravenous or oral fluids to replace fluids lost from the severe diarrhea
36
treatment of cholera Can be shorten by antibiotics such as
azithromycin or ciprofloxacin
37
Once ingested, the bacteria colonize the __, in which they multiply and produce choleragen.
small intestine
38
Two types of Cholera
classical type and el tor type
39
Second most common Vibrio species implicated in gastroenteritis
Vibrio parahaemolyticus
40
Most cases of gastroenteritis can be traced to recent consumption of raw, improperly cooked, or recontaminated seafood, particularly oysters
Vibrio parahaemolyticus
41
Self-limited disease
Vibrio parahaemolyticus
42
Kanagawa-toxin Positive
Vibrio parahaemolyticus
43
Kanagawa-toxin Positive – Produces a heat-stable hemolysin that is able to lyse human erythrocytes in a special, high salt mannitol medium called ____
Wagatsuma Agar
44
Summer Diarrhea
Vibrio parahaemolyticus
45
Kanagawa phenomenon. ingestion of contaminated seafood. ● The pathogenesis of V. parahaemolyticus is not as well understood as V. cholerae. However, there is a possible association between hemolysin production and virulence, known as the ___
Kanagawa phenomenon.
46
● Least pathogenic; most frequently isolated vibrio
Vibrio alginolyticus
47
Two categories of infection: primary septicemia and wound infections
Vibrio vulnificus
48
is =vibrio oxidase positive?
yes
49
in MAC is vibrio non lactose?
yes
50
trasnport media of vibrio
cary0blair media
51
recommended selective medium for vibrio
TCBS (thiosulfate citrate bile salt sucrose agar)
52
● Ubiquitous ● Oxidase positive ● Glucose fermenter ● Gram-negative rods ● Motile with single tuft of flagella
aeromonas