The Public Health Agency of Canada has already begun using the Pfizer-BioNTech vaccine to immunize people against COVID-19, and thousands of doses of Moderna are expected to arrive in Canada a matter ...

How are they transported? This is the most significant difference between the two vaccines, Bernstein says. The Pfizer-BioNTech is more challenging to transport — requiring temperatures between -70 ...

Children as young as 6 months can now receive a COVID-19 vaccine to protect them against severe disease, hospitalization and death. And they have two choices: One from Moderna and one from Pfizer and ...

COVID infections can age organs: research Dr. Ziyad Al-Aly from Washington University in St. Louis speaks to CTV's Your Morning about the connection between COVID-19 and organ aging.

And then there were two. With Health Canada’s decision to approve a second COVID-19 vaccine — the American-developed Moderna — there will soon be two vaccine options in this country.

Soon, there could be two. Health Canada is expected to make a regulatory decision imminently on a second COVID-19 vaccine.