Microsporidiosis, Sarcocystosis, and Dientamoebiasis

It is caused by Microsporidia, a group of obligate intracellular spore-forming protozoans.

Through ingestion or inhalation of spores found in contaminated water, food, or person-to-person contact.

Intestines, eyes, and respiratory tract; it can disseminate in immunocompromised individuals.

Chronic diarrhea, abdominal pain, and weight loss.

By identifying spores using modified trichrome stain, PCR, or electron microscopy.

Sarcocystis species, mainly S. hominis and S. suihominis in humans.

By eating undercooked or raw meat (beef or pork) containing sarcocysts.

Intestinal sarcocystosis (from cysts) and muscular sarcocystosis (from sporocysts in food/water).

Nausea, abdominal pain, diarrhea, and vomiting.

Identification of sarcocysts or sporocysts in muscle biopsy or stool samples.