West Nile virus,a mosquito-vectored flavivirus of the Japanese encephalitis serogroup,was first detected in North America following an epizootic in the New York City area in 1999.In the intervening 11 years since the arrival of the virus in North America,it has crossed the contiguous USA,...
West Nile virus can infect mosquitoes, birds, humans, horses and other mammals. "It was first identified in 1937 in a region of Uganda West of the Nile River, hence the term West Nile," Dr. Daniel Pastula, chief of neuro-infectious diseases and global neurology at the University of Colora...
West Nile virus (WNV) is a mosquito-borne, single-stranded, positive-sense RNA virus belonging to theFlaviviridaefamily. After WNV gains entry through an infected mosquito bite, it replicates in a variety of human cell types and produces a viremia. Although the majority of infected individuals r...
West Nile Virus: striking differences between Europe and North AmericaWest Nile Virus
West Nile Virus West Nile viruscauses a viral-induced encephalitis and meningitis. The virus is endemic in the Near East, Africa, and Southwest Asia; it has recently been found in North America. Wild birds transmit the virus by way of multiple mosquito species (Culex, Aedes,andAnopheles). Th...
West Nile is a virus most commonly spread to people by mosquito bites. In North America, WNV cases occur during mosquito season, which starts in the summer and continues through fall. Most people infected with WNV do not have symptoms. About one in five people who are infected develop a fe...
West Nile Virus is transmitted through the bite of mosquitoes that have been infected by biting birds carrying the virus. It is a seasonal threat in North America, coinciding with the life cycle of mosquitoes, typically spiking from summer to fall. The West Nile Virus was first discovered in...
The West Nile virus has been reported in Africa, Asia, Europe, the Middle East, and North America. In 1999, the first cases of West Nile virus disease were reported in New York City, with the infection subsequently spreading throughout the North American continent. [5] The West Nile viru...
REVIEW www.nature.com/clinicalpractice/neuro West Nile virus meningoencephalitis Roberta L DeBiasi and Kenneth L Tyler* SUMMARY Since its first appearance in the US in 1999, West Nile virus (WNV) has emerged as the most common cause of epidemic meningoencephalitis in North America. In the 6...
Author Summary West Nile virus (WNV) emerged in North America in 1999 and rapidly spread across the U.S. due to the presence of highly susceptible mosquito vectors and avian hosts. One of the major avian reservoirs for WNV in the U.S. is the house sparrow (HOSP), which has low mortali...