West Nile virus – Brazil
On 9 December 2014, the Ministry of Health of Brazil reported a case of West Nile Virus (WNV) in the state of Piauí (PI). This is the first detection of a human case of WNV infection in Brazil.
West Nile virus is a mosquito-borne zoonotic arbovirus belonging to the genus Flavivirus in the family Flaviviridae. People who get WNV usually have no symptoms or mild symptoms. The symptoms include a fever, headache, body aches, skin rash, and swollen lymph glands. They can last a few days to several weeks, and usually go away on their own.
If West Nile virus enters the brain, however, it can be life-threatening. It may cause encephalitis, or meningitis.
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