Paragonimiasis (Oriental Lung Fluke)

Acquired from eating infected crabs or crayfish. Flukes migrate from intestine into lungs and other organs. The adult worm matures and produces eggs after 6 weeks, which are coughed up.Particularly risky foods include 'drunken crabs' - crabs that are immersed in rice wine before eaten or raw, pickled, or undercooked fresh water crustaceans.
Symptoms include mild cough, fever and blood stained sputum. Later night sweats and chest pain develop. Medication is effective although surgery is sometimes needed.

Tropical Medicine Central resources