A teenager remains in hospital with avian flu, according to British Columbia's top doctor. On Tuesday, Provincial Health Officer Dr. Bonnie Henry said the teen is suffering from severe respiratory distress. On Wednesday, the Public Health Agency of Canada (PHAC) confirmed it as avian flu — the first case of its kind in Canada. Henry said it's very likely that the B.C. teen's infection took place due to an exposure to either a sick animal or something in the environment.

Over the past few months, the Mass Department of Public Health, working with the Department of Recreation and Conservation, has deemed dozens of water locations throughout the state closed due to high bacteria levels.

The Nigeria Center for Disease Control (NCDC) said no fewer than 2,122 suspected human cases, 411 confirmed cases, and 72 deaths have been recorded from Lassa fever in Nigeria this year.