September 29, 2023 Vaccines Health Canada approves Pfizer’s new COVID-19 vaccine targeting Omicron XBB.1.5 subvariant
January 5, 2023 Epidemiology Public Health Agency of Canada states that 21 cases of COVID subvariant XBB.1.5 have been detected in Canada. If the U.S. is any indication, there will be many more cases to come. Border screening may slow but not stop exponential increases in cases.