Europe's drug regulator has found a possible link between Johnson & Johnson's COVID-19 vaccine and rare blood clotting issues in adults who received doses in the United States, but backed its overall benefits against any risks.The European Medicines Agency (EMA)...

For decades, McMaster University in Hamilton, Ont., has been a hub for research on blood and its diseases — known as hematology — but in recent weeks it has taken on an even more prominent role in the field: working...

When Ontario Premier Doug Ford announced the current stay-at-home order on April 7, he said the province's COVID-19 crisis had become worse than predicted. "The capacity at the ICUs and these variants have taken off even beyond what they told us,"...

Ontario's failure to control the third wave of the pandemic has led to a massive surge in COVID-19 cases in hospitals with devastating consequences on the delivery of health care to millions of Canadians. "Our hospital system is literally buckling," said...

It was a report that likely prompted alarm for many women: rare, serious blood clots following vaccination for six Americans. All women, all of child-bearing age.That update this week also came on the heels of similar global blood clot reports among...

U.S. health officials are weighing next steps as they investigate a handful of unusual blood clots in people who received Johnson & Johnson's COVID-19 vaccine — a one-dose shot that many countries were eagerly awaiting to help speed virus protection.It's...

We still don't know exactly how it started — a runner on a treadmill, or perhaps someone lifting weights — but an outbreak at a gym in Quebec City has become one of the largest recorded COVID-19 superspreading events in...

On Tuesday, the U.S. recommended putting on hold the use of the single-dose Johnson & Johnson COVID-19 vaccine.The U.S. Centers for Disease Control and Prevention and the Food and Drug Administration (FDA) said in a joint statement they are investigating...

The first confirmed case of an adverse event that causes rare but potentially fatal blood clots has been recorded in Canada in connection with the AstraZeneca-Oxford Covishield COVID-19 vaccine.Quebec's Ministry of Health and Social Services confirmed a person in the province experienced...