 Canadas top doctor is urging people to get their booster shots as COVID-19 activity continues to fluctuate in the country. Dr. Theresa Tam, Canadas chief public health officer, emphasized that many Canadians who are eligible for a booster dose havent gotten it yet. We still have a ways to go, even for the 65-plus population, Tam ... Get your booster dose as new Omicron offshoot spreads: Canadas... 