prevalence of intestinal parasites in patients referred to medical centers of shahid sadoughi university of medical sciences in yazd 2015-2016

Aims and background: for a long time, intestinal parasite infections are among the major problems of public health in iran. our aim was epidemiological studies on the frequency of intestinal parasites in patients referred to medical centers of shahid sadoughi university in yazd during 20152016.materials and methods: in a two years crosssectional study in the medical centers of shahid sadoughi university of medical science, 31000 stool samples were evaluated for parasitic infections by direct smear and formalinether concentration methods.results and conclusions: the results showed that incidence was 3.8%. protozoan infection were blastocystis hominis (1.75%), giardia lambelia (1.45%), chilomastix mesnili (0.35%), trichomonas hominis (0.05%) and helmints in infections were hymenolepis nana (0.11%), enterobius vermicularis (0.08%) and ascaris lumbricoides (0.01%). there was a significant difference in parasite prevalence between age categories. however, no significant difference was found with gender. the intestinal parasites, especially helminthic infections have been decreased during recent years.