The most common human helminthic infection, Ascaris sp. have a worldwide distribution. Their highest prevalence is in tropical and subtropical regions, and areas with inadequate sanitation.

The larvae and adult worms live in the small intestine and can cause intestinal disease.

In this short educational video, I look at the Giant intestinal roundworm–it’s geography, morphology, life cycle, pathology, diagnosis, treatment, epidemiology and control.

Listen to some podcasts on parasites: 

Ascariasis life cycle