Diphyllobothriasis

**Definition:** A disease caused by an infection with the parasitic worm Diphyllobothrium. This disease is characterised by abdominal discomfort, diarrhoea, vomiting, or weight loss. This disease may be asymptomatic. Transmission is by ingestion of infected undercooked fish. Confirmation is by identification of Diphyllobothriasis eggs in a faecal sample.

**Exclusions:** - larval diphyllobothriasis