Prevalence of Intestinal Parasitic Infections Among Rural Inhabitants of Hamadan City, Iran, 2012

(18.9%), 32 Blastocystis hominis (14%), 16 Endolimax nana (7%), nine Iodamoeba butschlii (3.9%), five Giardia lamblia (2.2%), two Taenia species (0.9%), two Hymenolepis nana (0.9%), one Chilomastix mesnili (0.4%), one Trichuris trichiura (0.4%), and one Entamoeba histolytica/dispar (0.4%). No significant difference in infection rate was observed with regard to indirect or direct contact with livestock. Coinfection of E. coli and B. hominis, E. coli and I. butschlii, and E. nana and G. lamblia were statistically significant. Interestingly, no Ascaris lumbricoides ovum was seen in this population. Conclusions: According to the results of the present study, the prevalence of some infections with intestinal parasites is high in the Hamadan City. Considering that most of the parasites are nonpathogenic, pathogenic ones have been reduced generally in comparison to the previous reports. Nevertheless, the existence of Taenia species and H. nana could not be ignored.