Re-emergence of Schistosomiasis in Dali City after the Criteria of Transmission Control Were Met
- VernacularTitle:大理市血吸虫病疫情回升及原因分析
- Author:
Kelin LI
;
Guanghuai YANG
;
Suosheng DUAN
;
Guanghui XIA
- Publication Type:Journal Article
- Keywords:
schistosomiasis, transmission control, re-emergence
- From:
Chinese Journal of Parasitology and Parasitic Diseases
1987;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the epidemic situation on schistosomiasis in five years after reaching the criteria of transmission control in 1995 in Dali City. . Methods. Epidemiological data of schistosomiasis during 1995-2000 were collected and analyzed. . Results . Stool positive rate in the population was increasing yearly, new cases of infection including cases under 14 years old were detected each year. Acute infection occurred during 1996-1998 consecutively. Stool positive rate in cattle was unstable. Snail-ridden area increased significantly in 1996 and spots with infected snails stayed at a higher level during 1997-2000. . Conclusion . Schistosomiasis in Dali city has been re-emerging though it was once deemed under transmission control. Possible reasons include a low drug-taking rate though distributed, frequent movement of cattle population, and less activity on snail control.
