The flu (influenza) is a viral respiratory illness that causes fever, chills, runny nose, body aches, and cough. It spreads easily from person to person. The flu can cause moderate to severe symptoms.| medlineplus.gov
Anorexia is an eating disorder that causes people to weigh less than is considered healthy for their age and height, usually by excessive weight loss.| medlineplus.gov
A computed tomography (CT) scan is an imaging method that uses x-rays to create pictures of cross-sections of the body.| medlineplus.gov
This article describes a group of different conditions caused by eating contaminated fish and seafood. The most common of these are ciguatera poisoning, scombroid poisoning, and various shellfish poisonings.| medlineplus.gov