Capillariasis of the intestine

**Definition:** A condition caused by an infection with the parasitic worm Capillaria philippinensis. This condition is characterised by abdominal pain, diarrhoea, nausea, vomiting, or weight loss. Transmission is by ingestion of infected undercooked fish, or autoinfection. Confirmation is by identification of Capillaria philippinensis in a tissue biopsy of the small intestines or faecal sample.

**Exclusions:** - Capillariasis due to Capillaria hepatica