Abstract:

Objective  To understand the present epidemic status of human important parasitic diseases in Anhui province. Methods According to the unified methods formulated by the national investigation scheme and stratified cluster random sampling , 48 rural pilots and 18 urban pilots were selected in Anhui province. The number of the subjects investigated in individual pilot was defined over 250. Modified Kato-Katz thick smear was applied to detecting the eggs of intestinal helminthes. Tube fecal culture method was used to identify the species of hookworm．The Enterobius eggs were detected in children below 12 years old using adhesive-tape technique. The cyst and trophozoite of intestinal protozoa were examined by method of direct smear. Results A total of 12300 people in rural and 4717 people in urban areas underwent the survey. Ten species of worm and 5 species of protozoa were identified, with an average infection rate of 1.95% and 0.46%, respectively. The constituent ratio of hookworm in the people infected with worm was 83.99%, and this ratio of Giardia lamblia in protozoa was 63.16%. The infection rate of worm showed a rising trend from teenage-group to older-age group, and was higher in females and low-educated population. The rate of protozoa was higher in population aged below 45 years and also higher in the low-educated subjects, yet the difference was not significant between men and women. Conclusion The infection rate of protozoa appears in low level at present and Giardia lamblia is the most common prevalence. The worm infection rate dropped by 90.9% from 2002 to 2015, with hookworm being the most infection species. Housewives and low-educated people are in high risks for parasite infection.