(n) infection of the intestines with protozoa found in contaminated food and water; characterized by diarrhea and nausea and flatulence and abdominal discomfort
[贾第虫病 / 賈第蟲病, Jiǎ dì chóng bìngㄐㄧㄚˇ ㄉㄧˋ ㄔㄨㄥˊ ㄅㄧㄥˋ] Giardiasis, a form of gastro-enteritis caused by infection of gut by Giardia lamblia protozoan parasite