Surveillance results of soil-borne helminth infection on the national surveillance sites in Henan,2016-2020
Objective To analyze the changing trend of soil-borne helminthiasis on the national surveillance sites in Henan,and provide scientific basis for formulating control strategies.Methods According to the requirements of the National Clonorchiasis and Soil-borne Nematode Disease Surveillance Program(Trial),the samples of permanent residents were collected from surveillance sites of Huaiyang district in Zhoukou from 2016 to 2020,enterobius vermicularis eggs were detected in children aged 3-＜10 years.The soil sample was collected to check for Ascaris eggs and hookworms.Infection rates were compared between groups.Results From 2016 to 2020,a total of 5 032 persons were monitored and investigated in Huaiyang district,and the overall infection rate of soil-borne nematodes was 0.22％.All infections were mild.There were no significant differences in the infection rates of soil borne nematodes among different gender,age groups,educational level,occupation(x2=0.029,1.240,2.161,2.660,P＞0.05).A total of 125 soil samples were collected.The positive rate of human Ascaris eggs was 2.40％,and no hookworm larvae or other eggs were found.Cellophane anal swab tests in 1 046 children aged between aged 3-＜10 years showed that the infection rate was 4.21％.The infection rates of enterobius vermicularis in boys and girls were 3.20％and 4.91％,respectively,with no significant difference(x2=2.126,P＞0.05).From 2016 to 2020,the infection rates of enterobius vermicularis in children were between 0.00％and 8.75％,and there was a statistically significant difference in the infection rate of enterobius vermicularis among children in different years(x2=24.359,P＜0.05).The infection age was concentrated between aged 4-＜8 years old 75.56％,with the highest infection rate among preschool children at 5.19％.There was no statistically significant difference in the infection rates of enterobius vermicularis among children of different ages(x2=10.580,P＞0.05).Conclusions The infection rate on the national soil-borne nematode disease surveillance sites in Henan province has been continuously below 1％for many years,meeting the national soil borne nematode transmission control standards.However,the infection rate of enterobius vermicularis in children is relatively high,and further attention should be paid to the infection of enterobius vermicularis in children in the future.
Soil-borne nematodeInfectionNational surveillance sitesHenan Province
NETL
NSTL
万方数据
