ABSTRACT
Objective To evaluate the effect of integrated schistosomiasis control measures in Honghu City during the period from 2008 through 2018. Methods The data pertaining to schistosomiasis control measures and the endemic situation of schistosomiasis in Honghu City were collected from 2008 to 2018, and the effect of integrated schistosomiasis control measures implemented was evaluated. Results The resources from agriculture, water resources, forestry, land, education and communication sectors were integrated to implement the integrated schistosomiasis control strategy with the focus on the control of source of Schistosoma japonicum infection in Honghu City from 2008 to 2018. The prevalence of S. japonicum infection reduced from 3.03% in 2008 to 0 in 2018 in humans in the city, and no acute infection was detected since 2009. In addition, the prevalence of S. japonicum infection in cattle reduced from 2.85% in 2008 to 0 in 2018, and no snail infection was found since 2012. Transmission control of schistosomiasis was achieved in the city in 2013, and transmission interruption was achieved in 2018. Conclusions The integrated schistosomiasis control measures achieve remarkable effects in Honghu City; however, there is still a risk of schistosomiasis transmission.
ABSTRACT
Objective To evaluate the effect of integrated schistosomiasis control measures in Honghu City during the period from 2008 through 2018. Methods The data pertaining to schistosomiasis control measures and the endemic situation of schistosomiasis in Honghu City were collected from 2008 to 2018, and the effect of integrated schistosomiasis control measures implemented was evaluated. Results The resources from agriculture, water resources, forestry, land, education and communication sectors were integrated to implement the integrated schistosomiasis control strategy with the focus on the control of source of Schistosoma japonicum infection in Honghu City from 2008 to 2018. The prevalence of S. japonicum infection reduced from 3.03% in 2008 to 0 in 2018 in humans in the city, and no acute infection was detected since 2009. In addition, the prevalence of S. japonicum infection in cattle reduced from 2.85% in 2008 to 0 in 2018, and no snail infection was found since 2012. Transmission control of schistosomiasis was achieved in the city in 2013, and transmission interruption was achieved in 2018. Conclusions The integrated schistosomiasis control measures achieve remarkable effects in Honghu City; however, there is still a risk of schistosomiasis transmission.
ABSTRACT
Objective To grasp the endemic situation of schistosomiasis in Jingzhou City in 2017, so as to provide the evidence for formulating prevention strategies. Methods According to the requirements of National Schistosomiasis Surveillance Program (2014), Hubei Schistosomiasis Surveillance Program (2015) and Jingzhou Schistosomiasis Surveillance Program, the local population infection monitoring, mobile population infection monitoring, livestock disease monitoring, snail monitoring, and wild manure monitoring were carried out at 71 monitoring sites throughout the city. Results Among the 71 surveillance sites, 44 118 local residents received the indirect hemagglutination test (IHA) for schistosomiasis and 1 925 persons were positive, with the positive rate of 4.36%, However, no stool examination positive cases were found. Totally 2 175 mobile people received the IHA for schistosomiasis and 93 persons were positive, with the positive rate of 4.28%, but no stool examination positive cases were found. A total of 1 937 head of cattle received the stool examination for schistosome infection, but no positives were found. Totally 1 302 Oncomelania hupensis habitats were found in 69 surveillance sites, with 1 923.64 hm2 area with snails. Totally 348 756 frames were surveyed, and the occurrence rate of snails was 17.19%. A total of 142 494 living snails were captured, with the average density of 0.41 snail/0.1 m2. No schistosome-infected snails were found. Totally 596 cases of wild manure were picked up in 41 environments with snails among 23 surveillance sites, but schistosome infested wild manure was not found. Conclusions In 2017, the level of schistosomiasis epidemic was very low in Jingzhou City. However, the risk of epidemic rebound still exists, and therefore, it is necessary to strengthen the monitoring work to further consolidate the achievements of schistosomiasis control.
ABSTRACT
Objective To grasp the endemic situation of schistosomiasis in Jingzhou City in 2017, so as to provide the evidence for formulating prevention strategies. Methods According to the requirements of National Schistosomiasis Surveillance Program (2014), Hubei Schistosomiasis Surveillance Program (2015) and Jingzhou Schistosomiasis Surveillance Program, the local population infection monitoring, mobile population infection monitoring, livestock disease monitoring, snail monitoring, and wild manure monitoring were carried out at 71 monitoring sites throughout the city. Results Among the 71 surveillance sites, 44 118 local residents received the indirect hemagglutination test (IHA) for schistosomiasis and 1 925 persons were positive, with the positive rate of 4.36%, However, no stool examination positive cases were found. Totally 2 175 mobile people received the IHA for schistosomiasis and 93 persons were positive, with the positive rate of 4.28%, but no stool examination positive cases were found. A total of 1 937 head of cattle received the stool examination for schistosome infection, but no positives were found. Totally 1 302 Oncomelania hupensis habitats were found in 69 surveillance sites, with 1 923.64 hm2 area with snails. Totally 348 756 frames were surveyed, and the occurrence rate of snails was 17.19%. A total of 142 494 living snails were captured, with the average density of 0.41 snail/0.1 m2. No schistosome-infected snails were found. Totally 596 cases of wild manure were picked up in 41 environments with snails among 23 surveillance sites, but schistosome infested wild manure was not found. Conclusions In 2017, the level of schistosomiasis epidemic was very low in Jingzhou City. However, the risk of epidemic rebound still exists, and therefore, it is necessary to strengthen the monitoring work to further consolidate the achievements of schistosomiasis control.