alexa West Nile virus Infection | Brazil| PDF | PPT| Case Reports | Symptoms | Treatment

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West Nile Virus Infection

  • West Nile virus Infection

     Pathophysiology: West Nile virus (WNV) is a neurotropic flavivirus that has emerged globally as a significant cause of viral encephalitis. Infection of humans is associated with a febrile illness that can progress to a lethal encephalitis with symptoms including cognitive dysfunction and flaccid paralysis. Seroprevalence studies suggest that while the majority of WNV infections are asymptomatic, approximately 20 to 30% of infected individuals develop flu-like clinical manifestations characterized as WNV fever. 

     

  • West Nile virus Infection

    Disease statistics: 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. Four other people presented symptoms; however, laboratory tests ruled out WNV infection. In addition to those with symptoms, tests were performed on 18 other individuals in the area and all results were negative.

  • West Nile virus Infection

    Treatment: The diagnosis of West Nile virus infection is confirmed with a blood or cerebrospinal fluid test. There is no specific treatment for West Nile virus infection. Intensive supportive therapy is directed toward the complications of brain infections. Anti-inflammatory medications, intravenous fluids, and intensive medical monitoring may be required in severe cases.

  • West Nile virus Infection

    Research:The Brazilian Society of Tropical Medicine expressed concern about the circumstances in which the diagnosis of the first case of WNF in Brazil was conducted

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