"Evidence from multiple studies indicates that mixing of COVID-19 vaccines [receiving an mRNA vaccine after an AstraZeneca vaccine] at dosing intervals between eight and 12 weeks is safe and demonstrates a beneficial immune response." Members of the Ontario COVID-19 Science Advisory Table have said the key to controlling the variant is to get people fully vaccinated as quickly as possible. The province noted, however, that some evidence suggests waiting for a longer interval between AstraZeneca doses "provides higher protection." The province says 195,032 doses of a COVID-19 vaccine were administered in the last day, for a total of 11,022,452 shots given so far. Those hot spot areas are: Toronto, Peel Region, York Region, Halton Region, Waterloo Region, Wellington-Dufferin-Guelph and Porcupine.
Source: CBC News June 12, 2021 14:20 UTC