With RT PCR,31(67 4%) of 46 aseptic meningitis and encephalitis were positive,but 14(26 1%) were positive by viral culture. The sensitive of RT PCR was significantly higher than that of viral culture.

• 46例无菌性脑膜炎和脑炎急性期CSF标本中31例检测结果阳性（67.；4%25），病毒分离仅14例阳性（26