Evidence of Toscana Virus Variants Circulating in Tuscany, Italy, during the Summers of 1995 to 1997

Abstract

The Toscana virus can cause neurological infection in adults. This study of 112 cases of acute meningitis which occurred during the summers of 1995, 1996, and 1997 demonstrated the presence of viral RNA in the cerebrospinal fluid of 56 patients. Their sequence analysis shows four variants of the Toscana virus.