Hymenolepis diminuta Infection

H. diminuta, the rat tapeworm, has a life cycle similar to the indirect cycle of Hymenolepis nana in grain insects. Rodents (primarily rats) serve as the definitive host of H. diminuta and beetles (flour and grain beetles) serve as the intermediate host. Humans can serve as definitive hosts after eating food containing infected grain insects. H. diminuta is 20 to 60 cm in length.

Human infection is usually asymptomatic, it but can cause mild gastrointestinal symptoms.

Diagnosis is by finding characteristic eggs in stool.

Treatment of H. diminuta1

A stool sample should be repeated one month after therapy is completed to verify cure.