Infectious Disease Compendium



A cestode (parasite), Hymenolepis nana and Hymenolepis diminuta: the dwarf tapeworm. Spread human to human. World wide in distribution. Look for eggs in the stool.

Epidemiologic Risks

H. nana: human to human (fecal-oral).

H. diminuta is acquired by eating flour or grain beetles, the intermediate host. Mostly a rat pathogen.


Mild abdominal discomfort.


Praziquantel given once, 25mg/kg.

Nitazoxanide 500 mg for 3 days.

Niclosamide given one day 2 grams day one followed by 1 gm six days later .


And there is this really creepy case where there tapeworm underwent malignant transformation and became a tapeworm tumor. EEEUUUUWWWW (PubMed).

Last update: 05/05/18