云南省布朗族聚居地区人群肠道寄生虫感染情况调查  

Investigation of intestinal parasitic infections among the population in areas inhabited by Bulang nationality in Yunnan Province

作　　者：陈萌 陶洪[1] 李彦忠[1] 张娟 周晓梅[1] CHEN Meng;TAO Hong;LI Yanzhong;ZHANG Juan;ZHOU Xiaomei(Yunnan Center for Disease Control and Prevention,Kunming 650500,Yunnan,China)

机构地区：[1]云南省疾病预防控制中心,云南昆明650500

出　　处：《中国寄生虫学与寄生虫病杂志》2024年第5期623-628,共6页Chinese Journal of Parasitology and Parasitic Diseases

摘　　要：目的 了解云南省布朗族聚居地区人群肠道寄生虫感染现状,为制定后续防治策略提供科学依据。方法 采用整群随机抽样法,分别于2015和2023年在云南省西双版纳傣族自治州勐海县布朗山乡开展调查,调查对象为居住6个月以上的各年龄层常住居民。收集调查对象的粪样和性别、年龄、文化程度等资料。采用改良加藤厚涂片法(Kato-Katz法,一粪两检)检查肠道蠕虫卵并计数,同时每份粪样均用试管滤纸法进行钩蚴培养;采用碘液直接涂片法检查肠道原虫。检出虫卵、包囊或钩蚴则判定为肠道寄生虫感染者,并计算土源性线虫感染度。将两次调查的人口数据合并作为标准人口对感染率进行标化,标化感染率的比较采用χ^(2)检验。结果2015年云南省布朗族聚居地区共调查800人,检出寄生虫感染阳性者564例,标化感染率为71.09%;2023年共调查1 128人,检出寄生虫感染阳性者203例,标化感染率为17.84%。2023年的寄生虫标化感染率低于2015年(χ^(2)=1 107.636,P <0.01)。2015和2023年肠道蠕虫标化感染率分别为69.36%和12.17%,2023年低于2015年(χ^(2)=1 304.222,P <0.01),其中2023年蛔虫、钩虫、鞭虫的标化感染率(2.78%、6.76%、3.13%)均低于2015年(54.67%、25.86%、30.22%)(χ^(2)=1 266.428、258.666、510.527,均P <0.01)。2015和2023年蛔虫、钩虫、鞭虫的感染均以轻度感染为主。2015和2023年肠道原虫标化感染率分别为5.21%和6.39%,差异无统计学意义(χ^(2)=2.518,P> 0.05),其中2023年人芽囊原虫标化感染率(3.11%)高于2015年(1.04%)(χ^(2)=20.424,P <0.01)。2015年,女性和男性的标化感染率分别为75.47%和66.18%;2023年,女性和男性的肠道寄生虫标化感染率分别为20.53%和14.92%。2015和2023年,女性标化感染率均高于男性(χ^(2)=20.035、10.416,均P <0.01)。2015年各年龄组间肠道寄生虫标化感染率的差异无统计学意义(χ^(2)=13.211,P> 0.05),2023年标化感染率最高的为20~29岁ObjectiveTo investigate the current status of intestinal parasitic infections in areas inhabited by Bulang nationality in Yunnan Province,and to provide a scientific basis for formulating prevention and control strategies.MethodsIn 2015 and 2023,the survey was carried out in Bulang Township,Menghai County,Xishuangbanna Dai Autonomous Prefecture,Yunnan Province using cluster random sampling,and the survey subjects were permanent residents of all ages who lived for more than 6 months.The fecal samples and information of survey subjects such as gender,age and education level were collected.The modified Kato-Katz thick smear method(two slides persample) was used to detect and count the eggs of intestinal worms,and each fecal sample was cultured to detect the hookworm used tube-filter paper culture method.Intestinal protozoa were detected by iodine staining smear method.Eggs,cysts or hookworms detected during fecal examination were judged to be intestinal parasitic infections,and the intensity of soil-transmitted nematode was determined.The population data of the two surveys were combined as the standard population to standardize the infection rate.The chi-square test was used for the comparison of the standardized infection rate.ResultsIn 2015,a total of 800 people were surveyed in areas inhabited by Bulang nationality in Yunnan Province,and 564 people were positive for parasitic infection,with a standardized infection rate of71.09%.In 2023,a total of 1 128 people were surveyed,and 203 people were positive for parasitic infection,with a standardized infection rate of 17.84%.The standardized infection rate of parasites in 2023 was lower than that in2015(χ^(2)= 1 107.636,P < 0.01).The standardized infection rates of intestinal worms in 2023 was 12.17%,which was lower than that in 2015(69.36%)(χ^(2)= 1 304.222,P < 0.01).The standardized infection rates of Ascaris lumbricoides,hookworm and Trichuris trichura in 2023(2.78%,6.76% and 3.13%) were lower than those in 2015(54.67%,25.86%and 30.22%)(χ^(2)= 1 266.428,258.666,

关 键 词：肠道寄生虫 云南省 布朗族 感染率 

分 类 号：R53[医药卫生—内科学]