机构地区:[1]湖北省随州市疾病预防控制中心,湖北随州441300 [2]湖北省疾病预防控制中心,湖北武汉430079 [3]武汉大学基础医学院,湖北武汉430079 [4]湖北省广水市疾病预防控制中心,湖北广水432799
出 处:《现代预防医学》2021年第16期3036-3039,共4页Modern Preventive Medicine
基 金:鄂中大洪山脉(随州区域)并殖吸虫病流行病学调查(2019SZ33002)。
摘 要:目的了解随州市并殖吸虫病流行动态及影响因素,预测流行趋势,为制定防治策略提供科学依据。方法 2017—2019年对曾为流行村的居民采血清用酶联免疫吸附试验(ELISA)检测并殖吸虫抗体,走访居民开展相关调查。捕捉溪蟹检测并殖吸虫囊蚴,捕获野生动物,寻找吸虫成虫或童虫。查阅该地三十年前相关调查资料,进行对比分析。结果2017—2019年共调查居民915人,总体阳性率为2.40%(22/915),1984年调查966人,总体阳性率为为6.42%(62/966)。本次调查溪蟹209只,总体阳性率为3.35%(7/209),1984年为25.44%(29/114),阳性率降低有统计学意义(χ^(2)=34.148,P<0.001);溪蟹总感染度为2.14个/只,低于1984年29.8个/只。蟹组织携带囊蚴数雄性为0.31个/g(17/54.35),雌性为0.17个/g(5/29.23)。野生动物调查,本次捕获转续宿主8只,未发现带虫者,1984年捕获保虫宿主10只,发现带虫1只,两次调查感染率无统计学差异(χ^(2)=0.013,P=0.908)。结论随州市辖境大洪山区仍有并殖吸虫病的自然疫源地存在,三十多年过去了,虽然环境有所改变,但当地居民和该虫宿主感染程度相对稳定。为了防止该病在本地再发,保护居民健康,建议对该市扩大范围并开展持续监测工作。Objective To understand the epidemic dynamics and influencing factors and predict the trends of paragonimiasis in Suizhou,so as to provide the evidence for formulating the future prevention and control strategy.Methods From 2017 to2019,sera were collected from residents of formerly endemic villages to detect Schistosoma haematobium antibodies by en-zyme-linked immunosorbent assay(ELISA),and residents were visited to conduct related surveys.The crab was captured for detection of trematode cysts,and wild animals were captured to look for adult or child trematodes.We checked the relevant survey data of the area thirty years ago and conducted comparative analysis.Results A total of 915 residents were surveyed in 2017-2019,and the overall positive rate was 2.40%(22/915),966 people were surveyed in 1984,and the overall positive rate was 6.42%(62/966).The overall positivity rate was 3.35%(7/209)in the current survey of 209 crab,compared with 25.44%(29/114)in 1984,with a statistically significant decrease in positivity rate(χ^(2)=34.148,P<0.001);the total infectivity of crab was 2.14 per crab,which was lower than that of 29.8 per crab in 1984.The number of cysts carried by crab tissues was 0.31/g for males(17/54.35)and 0.17/g for females(5/29.23).In the wildlife survey,eight crab hosts were captured and no carriers were found in this survey,and 10 crab hosts were captured and one carrier was found in 1984,and there was no statistical difference in infection rate between the two surveys(χ^(2)=0.013,P=0.908).Conclusion The natural source of the disease still exists in the Dahong Mountains under the jurisdiction of Suizhou city,and although the environment has changed over the past 30 years,the level of infec-tion of local residents and hosts of this worm is relatively stable.In order to prevent the recurrence of the disease in the local area and to protect population health,it is recommended to expand the scope and carry out continuous surveillance in the city.
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