[Surveillance of 494 viral encephalitis cases in Baoji Municipal during 2005-2007].

OBJECTIVE

To understand the impact of surveillance system of viral encephalitis during 2005-2007 in Baoji city of Shaanxi province, to find epidemiological characteristic, control strategies and measurement to Japanese Encephalitis (JE).

METHODS

Establishing the monitoring system of viral encephalitis, special monitoring of viral encephalitis cases was analyzed statistically by Epi data and Excel software.

RESULTS

The seasonal trend of viral encephalitis was identical with that of JE, but the age of the incidence was different. Rate of missed diagnosis was 23.76%, squcalac cases was 5.5 times of the regular reported cases. The actual mortality was 7 times of the reported cases after 90 days and 180 days follow-up visit.

CONCLUSIONS

Viral encephalitis monitoring and JE follow-up should be conducted in epidemic season so as to improve the accuracy of report and diagnosis of JE.