CleverRaven/Cataclysm-DDA — pull request #6440 by Rivet-the-Zombie (2014-03-05 08:03:38+00:00)
Title: Parasitic Package: Adds foodborne parasites to make life more interesting.

Parasites can be acquired by eating uncooked meat, fish, fat, bones, or wild vegetables. Each type of food has different chances of carrying parasites.
All parasites can be detected using the Blood Analysis CBM, and some can be cured using the Blood Filter CBM. All parasites can be cured using antiparasitic drugs.

your new friends:

tapeworm - makes you get hungry faster
bloodworms - makes you get thirsty faster, makes you generally unhealthy and tired easily
brainworm - slowly eats at your brain's visual centers, causing headaches and occasional vision problems
pain cysts - causes occasional pain and increased fatigue