“…Consequently, compared to the older people, they become more susceptible to parasites. Moreover, inadequate water supply, poor hygiene, toilet training, climatic conditions, huge populations, and the lack of social support are some factors that play the important roles in the prevalence of E. histolytic and G.lamblia infection [13,16,31]. These findings were similar with those of other investigations which obtained that diarrhea occurrence in males was higher than in females [32].…”