Surveillance and Analysis of HFRS in Zhejiang Province from 1997 to 2000 Year

Objective: To study HFRS's prevalent regularity in the whole province,to control its outbreak and work out the way to deal with it.Methods: Direct Fluorescent Antibody Technic (FAT) was used to test HV antigen in rat's lung, Indirect Fluorescent Antibody Technic (IFAT) was used to test HV antibody in sera of patients and people in good health.Results: There were 9 041 patients in the whole province from 1997 to 2000, and 48 of them had died. The average morbidity was 5.08 per 100 000 persons. Most patients were in the east and west hilly land of Zhejiang province. 11 cities of Zhejiang province had patients. The patients were both disperse and relatively concentrately. Most patients came from Shaoxing, Ningbo, Taizhou, Quzhou, Hangzhou and Jinghua city. Main HFRS's host animal in field is Apodemus Agrarius Pallas, main host animal in house is Rattus Norvegicus Berkenhout. Conclusion: HFRS's surveil lance and vaccinated people with HFRS's vaccine should be enhanced.