why is giardiasis called beaver fever
Giardiasis is a common cause of waterborne disease in humans. Giardiasis is sometimes called beaver fever after an outbreak in which hikers at Banff National Park became ill from drinking stream water contaminated with Giardia from beavers.iardia infection may causea variety of intestinal symptoms, including 1  : diarrhea. 2  bloating, gas or flatulence. 3  greasy stools that tend to float. 4  stomach or abdominal cramps. 5  upset stomach or nausea. 6  fatigue, and. 7  weight loss.