health: West Nile Virus

West Nile Virus

West Nile virus is mainly found in Africa, the Middle East, and Asia, and typically infects birds. Mosquitoes that have fed on infected birds can then transmit the disease to humans. About one-fifth of humans infected with the virus develop West Nile fever, which is sometimes accompanied by a rash. Less than one percent of all persons infected develop serious illnesses like encephalitis and meningitis. West Nile virus was first identified in Uganda in 1937. When did it reach the US? More… Discuss


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