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VPH 122 (3rd exam) > Vibrio > Flashcards

Vibrio Flashcards

1
Q

animals mainly affected with Vibriosis (4)

A
  1. Plant-eating animals
  2. Birds near bodies of water
  3. Seafood animals
  4. Freshwater animals
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2
Q

(3) at risk with Vibrio

A
  1. immunocompromised
  2. taking antacid
  3. recent stomach surgery
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3
Q

(3) zoonotic Vibriosis

[ cvp ]

A

V. cholerae
V. vulnificus
V. parahaemolyticus

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4
Q

3 environments where Vibrio can be found

A
  1. freshwater
  2. estuarine
  3. marine
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5
Q

optimum growth of Vibrio

A

37C ; pH 5 - 7

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6
Q

Can Vibrio tolerate high salt conditions?

A

NO (mild only, like saltwater sea)

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7
Q

Because of this, new strains of Vibrio emerged

A

recombination &
horizontal gene transfer

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8
Q

Vibrio
E. coli
Salmonella

..can form this, which persist in the environment.

A

biofilm

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9
Q

Vibrio:
viable or not
culturable or not?

A

viable,
not culturable

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10
Q

(3) disinfectants for Vibrio

A
  1. Chlorine-bases
  2. hydrogen peroxide
  3. 70% ethanol
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11
Q

Vibrio prefers: warm or cold?

A

WARM

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12
Q

V. cholerae mainly affects? give age

A

children (below 5 y.o.)

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13
Q

where do Cholera starts?

A

coastal regions

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14
Q

Major factor of cholera?

A

Bodies of water

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15
Q

best source of Vibrio?

A

Plankton blooms

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16
Q

Cholera has become (endemic, epidemic, pandemic) in the Philippines

A

EN-demic

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17
Q

Vibrio spp that has 2 serotypes
- classified based on antigenic propterties & physiological differences

A

V. cholerae

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18
Q

Strain of this Vibrio spp is different in US & Asia

A

V. parahaemolyticus

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19
Q

V. parahaemolyticus preferred season?

A

temperate, tropical coastal areas

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20
Q

prevalent strain of V. parahaemolyticus

A

O3 : K6

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21
Q

3 risk factors of V. parahaemolyticus

[ bsc ]

A
  1. Ballast water discharge
  2. Shellfish transport
  3. Climate warming
22
Q

V. vulnificus is more common in _____ water

A

estuarine

23
Q

Vibrio species that is opportunistic

A

V. vulnificus

24
Q

Vibrio spp responsible for more than 95% of seafood-related deaths (US)

A

V. vulnificus

25
Q

Which spp has these risk factors

  • liver disease
  • diabetes mellitus
  • tumor
  • immunocompromised individuals
A

V. vulnificus

26
Q

transmission of Vibrio

A

any that related with contaminated water & seafood (+ wound)

27
Q

only Vibrio spp found in FRESH water

A

V. cholerae (O1 / O139 strains)

28
Q

Vibrio spp found in SEA-WATER only & thru wound exposure?

A

V. alginolyticus

29
Q

Vibrio spp that has symptoms involving 3 biotypes
1 - gastroenteritis, wound infections & human fatal septicemia
2 - farmed eel fatal septicemia
3 - wound infections

A

V. vulnificus

30
Q

Vibrio spp involving ear & wound infection

A

V. alginolyticus

31
Q

Vibrio spp with ID of >105 CFU/g

A

V. parahaemolyticus

32
Q

Vibrio spp with otitis media

A

V. cholerae (non-O1 / non-O139 strain)

33
Q

Sample for diagnosis of Vibrio?

A
  1. feces / stool
  2. blood
34
Q

Definitive diagnosis for Vibrio

A

Dark Field microscopy (not confirmatory)

35
Q

Bacterial culture for Vibrio?

A

Thiosulfate-citrate-bile salts-sucrose (selective)

36
Q

Inhibits growth of Vibrio

A

thiosulfate-citrate

37
Q

Vibrio spp that fermente sucrose which lowers acidity of medium?

A

V. cholerae

38
Q

Vibrio spp that cannot ferment sucrose (same pH)

A

V. parahaemolyticus

39
Q

Diagnosis for genes of Vibrio
- cholera toxin (CTX)

V. parahaemolyticus:
- TDH
- TRH

A

PCR

40
Q

(2) supportive treatment for Cholera?

A
  1. IV fluid
  2. PO of electrolyte & glucose drinks (mild cases)
41
Q

Treatment for “children” with diarrhea cased by Vibrio ? give span of tx

It reduces frequency & recurrence

A

Zinc therapy (for 2 weeks)

42
Q

Antibiotics of choice for Vibrio (shortens duration)

[ 34 DEA ]

A

3rd & 4th gen cepahlosporin
doxycycline
erythromycin
azithromycin

43
Q

Resistant for Vibrio

[ P VAE ]

A

Penicillin

Vancomycin
Ampicillin
Erythromycin

44
Q

Vaccination for vibrio is only available for ____

dose?

A

humans ; once (some are boosted)

45
Q

meaning of WASH

A

Water
Sanitation
Hygiene

46
Q

2 Reporting system needed to be improved for Vibrio

A

• Surveillance system
• International reporting system

47
Q

definition of COVIS

A

Cholera & Other Vibrio Information Service

48
Q

gives idea on current ecology & epidemiology of Vibrio

A

COVIS

49
Q

WHO wants to end cholera in ___?

A

2030

50
Q

What does multi-sectoral approach mean?

A

hotspots are targeted to eradicate

VPH 122 (3rd exam) (26 decks)

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