Health

New U.S. research on long COVID-19 provides fresh evidence that it can happen even after breakthrough infections in vaccinated people, and that older adults face higher risks for the long-term effects.

An extensive study of thousands of COVID-19 patients in Ontario hospitals found links between the severity of their infections and the levels of common air pollutants they experience. 1

A record number of children have been visiting the emergency room at a Hamilton hospital in the past week, resulting in longer than normal wait times.

Three doses of Pfizer's COVID-19 vaccine offer strong protection for children younger than 5, the company announced Monday. Pfizer plans to give the data to U.S. regulators later this week in a step toward letting the littlest kids get the shots.

Global health officials have sounded the alarm over rising cases in Europe and elsewhere of monkeypox, a type of viral infection more common to west and central Africa. 1

Ontario’s top public health official issued an order to healthcare providers requiring them to report any possible or suspected cases of monkeypox to local authorities. 2

The Public Health Agency of Canada says two cases of monkeypox in Quebec are the first confirmed cases in the country. 4

An Ontario woman is urging the government to reconsider insurance eligibility for a drug that could save her life but costs hundreds of thousands of dollars a year.

A Toronto hospital says it has detected seven cases of severe acute hepatitis of unknown origin in children over a six month period, as global experts race to figure out what’s causing the unexplained illness. 3

Twenty-six months into a gruelling pandemic, with many Canadians facing the added challenge of navigating a return to the office, companies are embracing a range of approaches to help workers coping with mental health challenges. But experts say lip service remains a hazard too many boardrooms still fall back on.

Federal agencies are trying to get a handle on how many Canadians may be suffering from long COVID as researchers learn more about the mysterious after-effects of the virus.

Canadian advocates are highlighting abortion pills as an underused option in this country as uncertainty looms over the procedure's future in the United States, putting a spotlight on its accessibility.

Canadian hospitals saw a spike in the number of youth hospitalized for eating disorders during the COVID-19 pandemic, new data from the Canadian Institute for Health Research reveal. 1

Asking for help may be the most daunting part of dealing with a mental health issue, but paying for that help is often not much easier.

Health Canada has approved an end to the ban on gay men donating blood, a change welcomed by LGBTQ advocates but criticized as long overdue. 1

Climate change will result in thousands of new viruses spread among animal species by 2070 — and that's likely to increase the risk of emerging infectious diseases jumping from animals to humans, according to a new study.

The Public Health Agency of Canada says it looking into reports of severe acute hepatitis, or liver inflammation, among young children in Canada. 4

Three out of every four U.S. children have been infected with the coronavirus and more than half of all Americans had signs of previous infections, Centers for Disease Control and Prevention researchers estimated in a report Tuesday.

Health officials in the UK have released new details in their ongoing investigation of an unusual series of hepatitis cases in children. The new report helps explain why they have zeroed in on a possible link to the adenovirus family, the UK Health Security Agency announced Monday. 1

A U.K. patient with a severely weakened immune system had COVID-19 for almost a year and a half, scientists reported, underscoring the importance of protecting vulnerable people from the coronavirus.