The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say. There is no indication that ...

Canada's 26-year streak of keeping measles at bay has officially ended, thanks to falling vaccination rates and a virus that apparently found better travel deals than most Canadians. The Pan American ...

TORONTO — Confirmation of the first human case of West Nile virus acquired in Canada this year arrived just in time for the August long weekend. The Public Health Agency of Canada said Thursday that ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...