UNLABELLED: Meningitis and encephalitis are complications of West Nile virus (WNV) infection. Although WNV is endemic in North America, the virus has recently been reported in Colombia and Argentina. Investigation of WNV in Brazil is important since this virus has never been studied previously in this country. OBJECTIVE: To investigate the presence of WNV infection in viral encephalitis/meningitis cases of unknown etiology in the city of Rio de Janeiro, Brazil. METHOD: Thirty-seven adults with viral meningitis/encephalitis had their serum and CSF tested for WNV antibodies using the ELISA method. RESULTS: Only one case was WNV-positive, but this case was also positive for dengue. The plaque reduction neutralization test distinguished infections, and was negative for WNV. CONCLUSION: WNV can be confused with dengue infection. Their symptoms and neurological picture are similar. We did not find WNV in any patients with encephalitis and meningitis in the city of Rio de Janeiro. Up to now, it has not been detected in Brazil.
UNLABELLED: Meningitis and encephalitis are complications of West Nile virus (WNV) infection. Although WNV is endemic in North America, the virus has recently been reported in Colombia and Argentina. Investigation of WNV in Brazil is important since this virus has never been studied previously in this country. OBJECTIVE: To investigate the presence of WNV infection in viral encephalitis/meningitis cases of unknown etiology in the city of Rio de Janeiro, Brazil. METHOD: Thirty-seven adults with viral meningitis/encephalitis had their serum and CSF tested for WNV antibodies using the ELISA method. RESULTS: Only one case was WNV-positive, but this case was also positive for dengue. The plaque reduction neutralization test distinguished infections, and was negative for WNV. CONCLUSION:WNV can be confused with dengue infection. Their symptoms and neurological picture are similar. We did not find WNV in any patients with encephalitis and meningitis in the city of Rio de Janeiro. Up to now, it has not been detected in Brazil.
Authors: Marcelo A Cunha E Silva Vieira; Aline de Almeida Xavier Aguiar; Amaríles de Souza Borba; Herlon Clístenes Lima Guimarães; Kelsen Dantas Eulálio; Linduarte Leitão de Albuquerque-Neto; Maria do Amparo Salmito; Oriana Bezerra Lima Journal: Rev Inst Med Trop Sao Paulo Date: 2015 May-Jun Impact factor: 1.846
Authors: Marcelo A C S Vieira; Alessandro P M Romano; Amaríles S Borba; Eliana V P Silva; Jannifer O Chiang; Kelsen D Eulálio; Raimunda S S Azevedo; Sueli G Rodrigues; Walfrido S Almeida-Neto; Pedro F C Vasconcelos Journal: Am J Trop Med Hyg Date: 2015-06-08 Impact factor: 2.345
Authors: Yekaterina O Ostapchuk; Andrey V Zhigailov; Yuliya V Perfilyeva; Anna G Shumilina; Lyazzat T Yeraliyeva; Anna S Nizkorodova; Tatyana V Kuznetsova; Farida A Iskakova; Zhanna A Berdygulova; Alena S Neupokoyeva; Seidigapbar M Mamadaliyev; Andrey M Dmitrovskiy Journal: IDCases Date: 2020-06-15