Some experts say use of the term "waning immunity" to justify whether a third dose of a COVID-19 vaccine booster is needed can give people a false understanding of how the immune system works.

With Alberta’s health-care system “collapsing right in front of our eyes,” the leaders of four unions representing thousands of health-care workers are calling on Premier Jason Kenney to ask for help from the military and Red Cross.

Fifty years ago, an ad-hoc group of environmentalists gathered in Vancouver's Kitsilano neighbourhood with a shared goal of stopping the U.S. from testing nuclear weapons off the western coast of Alaska. Today, Greenpeace is the most recognized environmental organization in the world.

According to Lt.-Cmdr. Brian Owens of the Joint Rescue Coordination Centre overseeing the search, the search has expanded to over 3,000 square nautical miles as of Sunday morning.

Union leaders representing thousands of medical workers in Alberta have asked Premier Jason Kenney to deploy the military and Red Cross to shore up a health-care system they say is "collapsing right in front of our eyes," due to rapidly rising COVID-19 cases.

CBC's Marketplace rounds up the consumer and health news you need from the week.

As residents of Shoal Lake 40 celebrate the end of their boil-water advisory, there are dozens more First Nations in Canada still fighting for access to clean water, including two in northern Manitoba.

The United States acted Sunday to stem the flow of migrants into Texas by blocking the Mexican border at an isolated town where thousands of Haitian refugees set up a camp, and American officials began flying some of the migrants back to their homeland.

Rabia Khedr and her family have first-hand experience of the gaps in Canada's health-care system when it comes to people with disabilities. She hopes the federal parties are listening to the millions of people with a disability, like her, and what they have to say.

The labour shortage on P.E.I. has been developing for years, but the COVID-19 pandemic has exacerbated it - whether it be because of women leaving the workforce, people migrating off the Island or a broader disconnect between the skills in demand versus those available in the workforce.