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Can a mosquito acquire West Nile virus from a horse or human and subsequently transmit it to another animal?

April 26, 2017acquire Animal horse Human mosquito subsequently transmit virus West Nile

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Can a mosquito acquire West Nile virus from a horse or human and subsequently transmit it to another animal?

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West Nile virus does not build up in sufficient amounts in the blood of humans or horses to be acquired by a mosquito for subsequent transmission. West Nile virus occurs in much higher concentrations in blood of certain birds, which is why they are so important in the transmission cycle.