This disease, is found all over the world. It is most common in the rural and wilderness areas of Western Canada, where there is lots of local wildlife. It is spread mostly through water that has been contaminated by droppings from infected animals, including beavers and muskrats. As a result, a person can spread it to others while preparing food. A person who is infected may not know they are passing the infection on to others because they may not have any symptoms.
Giardiasis is one of several water-borne diseases which can be contracted in British Columbia.
Surface waters, such as lakes, streams, springs and ponds can all carry this parasite as well as other infectious diseases such as Hepatitis A, Salmonella and Campylobacter . Untreated water may carry disease-causing parasites, bacteria, and viruses. It is always best to assume that surface water contains some animal droppings and treat it accordingly. Wash your hands well after going to the toilet or changing diapers, and after touching farm animals, pets, or wild animals. This is especially important before eating or preparing food.