Chinese Journal of Schistosomiasis Control ›› 2022, Vol. 34 ›› Issue (6): 622-.

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Investigation on prevalence of Schistosoma japonicum infections in wild mice in Shitai County, Anhui Province, 2018

HE Jia⁃chang1△, CHEN Xue⁃feng2△, WANG Tian⁃ping1*, GAO Feng⁃hua1, TAO Wei2, DAI Bo1, DING Song⁃jun1, LIU Ting1, LI Yi3,WANG Hao1, MAO Wei⁃fei3, ZHANG Le⁃sheng1, XU Xiao⁃juan1, ZHANG Shi⁃qing1   

  1. 1 Anhui Institute of Schistosomiasis Control, Hefei, Anhui 230000, China; 2 Shitai County Station of Schistosomiasis Control, Anhui Province, China; 3 Chizhou Center for Disease Control and Prevention, Anhui Province, China
  • Online:2023-01-09 Published:2023-01-12

2018年安徽省石台县野鼠血吸虫感染调查

何家昶1△,陈雪峰2△,汪天平1*,高风华1,陶伟2,代波1,丁宋军1,刘婷1,李异3,汪昊1,茅维飞3, 张乐生1,许晓娟1,张世清1   

  1. 1 安徽省血吸虫病防治研究所(安徽 合肥 230000);2 安徽省石台县疾病预防控制中心;3 安徽省池州市疾病预防控制保健中心(安徽 池州 247000)
  • 作者简介:何家昶,男,硕士,主任医师。研究方向:血吸虫病防治 陈雪峰,男,本科,副主任医师。研究方向:血吸虫病防治

Abstract: Objective To investigate the prevalence of Schistosoma japonicum infection in wild mice in Shitai County, Anhui Province, so as to provide insights into precise control of the source of S. japonicum infections. Methods Wild mice were captured using the trapping method for three successive nights at snail⁃infested settings from Jitan Village of Jitan Township, and Shiquan Village and Xibai Village of Dingxiang Township, Shitai County, Anhui Province in June and October, 2018. All trapped wild mice were sacrificed and liver and mesenteric vein specimens were collected for detection of S. japonicum eggs using microscopy, while the fecal samples in mouse intestines were collected for identification of S. japonicum infections using Kato⁃Katz technique. In addition, the population density of trapped wild mice was estimated and the prevalence of S. japonicum infection was calculated in trapped wild mice. Results A total of 376 wild mice were trapped from three villages in Shitai County. The population density of trapped wild mice was 9.1% (376/4 124), and the prevalence of S. japonicum infection was 24.2% (91/376) in trapped wild mice. The highest prevalence of S. japonicum infection was detected in Shiquan Village of Dingxiang Township (30.1%), and the lowest prevalence was seen in Xibai Village of Dingxiang Township; however, there was no significant difference in the prevalence of S. japonicum infection in trapped wild mice among three villages ([χ2] = 4.111, P > 0.05). In addition, there was no significant difference in the prevalence of S. japonicum infection in wild mice captured between on June (26.8%, 34/127) and October (22.9%, 57/249) ([χ2] = 0.690, P = 0.406). The trapped wild mice included 6 species, including Rattus norvegicus, Niviventer niviventer, R. losea, Apodemus agrarius, Mus musculus and N. coning, and the two highest prevalence of S. japonicum infection was detected in R. losea (34.9%, 22/63) and R. norvegicus (31.2%, 44/141). Conclusions The prevalence of S. japonicum infections is high in wild mice in Shitai County, and there is a natural focus of schistosomiasis transmission in Shitai County.

Key words: Schistosomiasis, Wild mouse, Shitai County

摘要: 目的 了解安徽省石台县野鼠血吸虫感染情况,为实施精准传染源防控策略提供依据。方法 选择石台县3个不同血吸虫病流行程度的自然村(矶滩乡矶滩村、丁香镇石泉村和丁香镇西柏村),于2018年6月和10月分别采取“夹夜法”连续3晚在有螺环境捕捉野鼠,对捕获野鼠采取肝结节压片镜检、肠系膜静脉压片镜检和Kato⁃Katz法等3种方法平行检查,统计捕获的野鼠密度和血吸虫感染率。结果 石台县3个调查村共捕获野鼠376只,平均野鼠密度为9.1%(376/4 124),平均血吸虫感染率为24.2%(91/376)。其中丁香镇石泉村野鼠血吸虫感染率最高,为30.1%;丁香镇西柏村野鼠血吸虫感染率最低,为17.4%;各村野鼠血吸虫感染率差异无统计学意义([χ2] = 4.111, P > 0.05)。6月和10月野鼠血吸虫感染率分别为26.8%(34/127)和22.9%(57/249),差异无统计学意义([χ2] = 0.690, P = 0.406)。捕获的野鼠包括褐家鼠、社鼠、黄毛鼠、黑线姬鼠、小家鼠和白腹巨鼠等6种,其中黄毛鼠和褐家鼠血吸虫感染率较高,分别为34.9%(22/63)和31.2%(44/141)。结论 2018年石台县野鼠血吸虫感染率较高,当地血吸虫病传播存在自然疫源性。

关键词: 血吸虫病, 野鼠, 石台县

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