Distribution and molecular analysis of subtypes from gastrointestinal symptomatic and asymptomatic patients in Iran.

Introduction: is a common intestinal parasite of human and animal hosts. The parasite has 17 subtypes, and among those at least nine subtypes (ST1-ST9) are found in human hosts.

Objective: The aim of the present study was to investigate the presence of different subtypes of spp.

Molecular epidemiology of spp. in children referred to Qods hospital in northwest of Iran.

sp. is a polymorphic intestinal parasite in humans and animals. The parasite has a worldwide distribution, especially in developing countries with poor sanitation, exposure to animals, and improper disposal systems.