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CLINICAL BACTERIOLOGY > VIBRIO > Flashcards

VIBRIO Flashcards

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

A

luh

25
Q

Based on the composition of O antigen, V. cholerae
O1 organisms are divided into the following serotypes:

ogawa

A

india

26
Q

Based on the composition of O antigen, V. cholerae
O1 organisms are divided into the following serotypes:

inaba

A

philippines

27
Q

Based on the composition of O antigen, V. cholerae
O1 organisms are divided into the following serotypes:

hikojima

A

japan

28
Q

causative agent of cholera (aka
Asiatic cholera or epidemic cholera)

A

V. cholerae O1

29
Q

It has been a disease of major public health
significance for centuries. Most epidemics
occur in developing countries, in which it is
endemic;

A

vibrio cholerae

30
Q

cholera is prevalent in what places

A

bengal region of india and bangladesh

31
Q

● Spread through contaminated water

A

cholera

32
Q

The disease manifests in acute cases as a severe
gastroenteritis accompanied by vomiting and followed by
diarrhea

A

cholera

33
Q

Rice watery stool (contain mucus flecks) that can
rapidly lead to dehydration and death

A

cholera

34
Q

responsible in disease of cholera

A

Cholera toxin, or choleragen

35
Q

Treatment and management of cholera:

A

intravenous or oral fluids
to replace fluids lost from the severe diarrhea

36
Q

treatment of cholera Can be shorten by antibiotics such as

A

azithromycin or ciprofloxacin

37
Q

Once ingested, the
bacteria colonize the __, in which
they multiply and produce choleragen.

A

small intestine

38
Q

Two types of Cholera

A

classical type and el tor type

39
Q

Second most common Vibrio species implicated in
gastroenteritis

A

Vibrio parahaemolyticus

40
Q

Most cases of gastroenteritis can be traced to recent
consumption of raw, improperly cooked, or
recontaminated seafood, particularly oysters

A

Vibrio parahaemolyticus

41
Q

Self-limited disease

A

Vibrio parahaemolyticus

42
Q

Kanagawa-toxin Positive

A

Vibrio parahaemolyticus

43
Q

Kanagawa-toxin Positive – Produces a heat-stable
hemolysin that is able to lyse human erythrocytes in a
special, high salt mannitol medium called ____

A

Wagatsuma Agar

44
Q

Summer Diarrhea

A

Vibrio parahaemolyticus

45
Q

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 ___

A

Kanagawa phenomenon.

46
Q

● Least pathogenic; most frequently isolated vibrio

A

Vibrio alginolyticus

47
Q

Two categories of infection: primary septicemia and
wound infections

A

Vibrio vulnificus

48
Q

is =vibrio oxidase positive?

A

yes

49
Q

in MAC is vibrio non lactose?

A

yes

50
Q

trasnport media of vibrio

A

cary0blair media

51
Q

recommended selective medium for vibrio

A

TCBS (thiosulfate
citrate bile salt sucrose agar)

52
Q

● Ubiquitous
● Oxidase positive
● Glucose fermenter
● Gram-negative rods
● Motile with single tuft of flagella

A

aeromonas

CLINICAL BACTERIOLOGY (10 decks)

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