West Nile Virus Neurologic Disease in Humans, South Africa, September 2008–May 2009

摘要

We investigated West Nile virus (WNV) as a possible disease etiology in persons hospitalized in South Africa. Of 206 specimens tested, 36 had WNV neutralizing antibodies, signifi cantly more than in similar earlier serosurveys. Sev-en probable acute WNV cases were identifi ed, suggesting WNV may be overlooked as an etiology of severe disease in South Africa