The Public Health Agency of Canada said 172 people reported getting sick in B.C., Alberta and Ontario in March and April after eating raw oysters. VANCOUVER - Oysters contaminated with norovirus in British Columbia have become a costly problem and the issue magnifies a broader failure to keep oceans clean, says the provincial shellfish growers association. The California Department of Public Health said about 100 people became ill with norovirus after consuming raw B.C. Centre for Disease Control, said norovirus can contaminate various foods and oysters are typically affected when taking in sewage from water. "(Oysters) filter the water that can be contaminated with norovirus and then they become contaminated with norovirus and then we unfortunately consume them and make ourselves sick that way," she said.

Source: thestar May 04, 2018 00:22 UTC