Except 63 cases(Entamoeba coli,the pathogenicity hadn t been proved),the rate of pathogenic intestinal protozoa was 19 64%.

Objective To investigated the prevalence of human intestinal helminthes infection in the rural areas of Zhanjiang, Guangdong province.

Objective To analyse the intestinal helminthiasis epidemic situation and to evaluate the control effect in past ten years so as to make out the control strategy in Sichuan Province.

Objective To understand the comprehensive control effect of intestinal helminthiasis in pupils and middle school students with anthelmintic in eight years running, grasp the epidemic situation and provide scientific data for the workout and adjustment of control strategy in Guangxi.

Investigation and analysis on the infection of intestinal nematode in Chongqing,China;

Objective To understand the current epidemic status of human intestinal nematode in Fujian province.

Objective To evaluate the current status of intestinal nematode infection in Shanghai and make recommendations for further control activities Methods Retrospective review of the control program was made based on the change of nematode prevalence in Shanghai area since the 1950s, and challenges under the current situation were analysed.

Investigation on the geohelminthes infection among schools of peasant workers children in Jinshan District,Shanghai;

Geohelminthes ova was examined by Kato-Katz thick smear method and oxyurid ova was examined by cellophane anal swab in Pingan County.

Result The occurrence of bellyworm infection was gradually decreased; anemia cases in 2003 was lower than that in 1996; trachoma in 2003 was lower than 1996; shortsightedness cases were increased.