Why West Nile virus is more dangerous in the elderly

23 julio 2015

West Nile virus (WNV) is particularly dangerous in older people, who account for a large number of severe cases and deaths caused by the virus. WNV infection turns serious when the virus crosses the blood-brain-barrier and wreaks havoc among nerve cells in the brain. A new study suggests that several critical components of the early immune response to the virus are impaired in elderly individuals, and that this can explain their vulnerability.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/WxFsM4_ytbI» height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WxFsM4_ytbI/150723181102.htm

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