The Globe and Mail

On Wednesday, proof-of-vaccination requirements went into effect at non-essential businesses in Ontario and New Brunswick. Most other provinces have similar rules in place or soon to begin; on Tuesday, Prince Edward Island become the latest to join the bandwagon, announcing vaccination passports will be necessary to enter places from sporting events to restaurants as of Oct. 5.

Myocarditis, or inflammation of the heart muscle, and pericarditis, inflammation of the lining outside the heart, occur in 1-in-6,000 to 1-in-15,000 people, ages 12 and older who receive an mRNA vaccine for COVID-19, according to Isaac Bogoch, an infectious diseases physician at Toronto’s University Health Network.

In a fresh setback for AstraZeneca, a U.S. health agency is questioning the efficacy of data on its COVID-19 vaccine from a large-scale trial in the United States.