Epidemic status of human key parasitic diseases in Tongcheng City,Anhui Province / 中国血吸虫病防治杂志

ABSTRACT

Objective To understand the current status of key parasitic diseases in Tongcheng City,so as to provide an epi-demiological reference for formulating the scientific planning for "13thFive-year" parasitic diseases prevention and control. Methods The villages of different levels in Tongcheng City were sampled to investigate the infection of parasitic diseases of res-idents aged three or more years.Soil-transmitted nemathelminth,intestinal protozoa and Enterobius vermicularis were investigat-ed by the Kato-Katz technique(a fecal sample seized two),iodine smear method and cellophane tape method,respectively. Meanwhile a questionnaire survey was conducted on the basic situation,knowledge and health behaviors of the residents to soil-transmitted nemathelminth infection.Results Totally 1 023 residents were investigated,and 38 were positive of parasitic infec-tion,with the total infection rate of 3.71%.The soil-transmitted nematodes infection rate was 3.62%,36 people were infected with hookworm(3.52%),one person was infected with Trichuris trichiura(0.10%),one person was infected with intestinal pro-tozoa(Blastocystis hominis). Ascaris lumbricoides,E. vermicularis and tapeworm infections were not founded. The total aware-ness rate of prevention knowledge,behavior and attitude was 76.93%.Conclusions The infection rate of soil-transmitted nema-thelminth infections is reduced below 5% in Tongcheng City.The main species of parasites is Necator americanus,and the popu-lation of the infection is mainly concentrated in the residents over the age of 60 years.