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.
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.
Authors: Julie Balen; Zheng-Yuan Zhao; Gail M Williams; Donald P McManus; Giovanna Raso; Jürg Utzinger; Jie Zhou; Yue-Sheng Li Journal: Bull World Health Organ Date: 2007-07 Impact factor: 9.408
Authors: Catherine A Gordon; Luz P Acosta; Geoffrey N Gobert; Remigio M Olveda; Allen G Ross; Gail M Williams; Darren J Gray; Donald Harn; Yuesheng Li; Donald P McManus Journal: PLoS Negl Trop Dis Date: 2015-01-21