Abstract:

Objective To understand the endemic trend and control effect of schistosomiasis in Jinhu County, so as to explore schistosomiasis control strategy and control measures. Methods  The schistosomiasis control data in Jinhu County from 1970 to 2013 were collected, and the schistosomiasis prevalence, snail status and control strategy in different years and periods were analyzed retrospectively. Results  The control work of schistosomiasis in Jinhu County had been carried out since 1970, and the county belonged to mild endemic areas. After went through different control stages, namely transmission control, transmission interruption, and consolidation and monitoring, and position-relevant control strategies were taken, schistosomiasis in Jinhu County had been effectively controlled, and had reached the criteria of schistosomiasis transmission interruption in 1997, there had no local schistosome infection patients and domestic animals which were positive by fecal examination been found for 23 consecutive years. By the end of 2013, there were around 3 420.98hm2 snail infested areas found in 278 407.07hm2 investigated areas. The area with snail control by carrying out environmental modification and by using molluscicides was 60.96hm2 and 8 820.94hm2, respectively, and the area with snails had reduced by 99.64%. A total of 1 785 schistsosmiasis cases were found in 503 265 people, and a total of 397 head domestic animals were determined as schistosome infection in 41 114 ones. In addition, 2 795 schistosomiasis patients and 468 head of infected domestic animals were treated. Conclusion  Schistosomiasis in Jinhu County has been effectively controlled, but the emerging and reemerging snail area is occasionally discovered, and there are imported schistosomiasis cases, which may easily cause the revival of schistosomiasis transmission, so the surveillance and the control achievement consolidation should be strengthened.

Key words: Schistosomiasis, Endemic, Effect, Transmission interruption