Background And Aim: is one of the most prevalent intestinal parasites in humans and animals, and children in close contact with livestock are particularly at risk of infection. This study aimed to detect assemblages of and determine the origin of zoonotic transmission of in children and calves in different parts of Babylon province, Iraq.
Materials And Methods: One hundred stool samples from children (68 boys and 32 girls) and 100 fecal samples from calves (46 males and 54 females) of different ages were randomly collected.