West Nile virus (WNV)

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7 Terms

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types of pathogen

virus

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reservoir

birds

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conditions caused

West Nile fever – About 20% of people develop fever, vomiting or rash. In less than 1% of people

encephalitis or meningitis occurs.

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portal of entry/transmission

Enters the bloodstream via the bite of an infected mosquito in most cases. In very rare cases, the virus

can be spread through blood transfusions or organ transplants.

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virulence factor

NS1 protein – is essential for viral replication and helps to suppress the host’s immune response

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treatment

not treated with antibiotics

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term

vector-borne WNV is spread through a vector (carrier). Bites by infected mosquitoes transmit the virus