Infectious Disease Compendium

Enterocytozoon bieneusi


A protozoan, a microsporidia.

Epidemiologic Risks

Drinking stool contaminated water. As most water is. That's why I drink only beer. According to WC Fields (PubMed), fish do something in water that may make it unpalatable. Or so they say.

Normal people can often get asymptomatic infection with chronic excretion (PubMed).

And it is found in a variety of animals especially a problem in pigs but, also a problem in Red­ Bellied Tree Squirrels (Callosciurus erythraeus) in Sichuan, China. So beware the Red­ Bellied Tree Squirrel feces when standing under a tree.


Diarrhea, especially in AIDS.


Nothing probably works in AIDS, can try 400 mg albendazole (bid x 4 weeks or longer), it may decrease the frequency of stools.


Found in Neanderthal stool (PubMed), the first complication of the paleo diet?

Last update: 05/05/18