WNV Flashcards

1
Q

WNV is present only in Africa.

A

F.

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2
Q

Mosquitoes are the principle vectors of the WNV.

A

T.

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3
Q

Eq + humans do ø play a significant role int he transmission of WNV.

A

T.

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4
Q

The weather does ø influence the occurrence of WNF outbreaks.

A

F.

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5
Q

Eq are the reservoirs host of WNV.

A

F.

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6
Q

The weather influences the emergence of WNV outbreaks through it’s effect on mosquito propagation dynamics.

A

T.

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7
Q

The sero- diagnostics of WNV is complicated by cross- reactions with related flaviviruses.

A

T.

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8
Q

The WNV is genetically uniform, but atleast 15 serotypes are known.

A

F.

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9
Q

Certain predatory bird sp are particularly sensitive to WNV infections.

A

T.

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10
Q

The use of repellents may reduce the risk of ifnection with WNV.

A

T.

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11
Q

Fomites play the most significant role in the transmission of WNV.

A

F.

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12
Q

WNV typically causes reproductive problems in cattle.

A

F.

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13
Q

WNF can be unambigously diagnosed on the basis of CS.

A

F.

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14
Q

There are ø available vaccinations for humans against WNV yet.

A

T.

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15
Q

The principal vectors of the WNV are midges.

A

F.

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16
Q

Different genetic lineages of WNV are circulating in Europe.

A

T.

17
Q

WNV mainly causes diarrhea in sheep.

A

F.

18
Q

WNV typically causes reproductive problems in cattle.

A

F.

19
Q

Wild birds are the natural hosts of WNV.

A

T.

20
Q

Mammals are usually accidental, dead- end hosts of WNV.

A

T.

21
Q

WNV causes central nervous signs in 80 - 90% of the infections.

A

T.

22
Q

WNV outbreaks usually develop in the end of summer + in autumn.

A

T.

23
Q

WNV cannot be isolated in cell cultures.

A

F.

24
Q

Vaccines are available for the prevention of Eq from WNV infections.

A

T.

25
Q

WNV is the only known zoonotic flavivirus.

A

F.