"...even a single dose of these 3 [#COVID19] vaccine products provide good to excellent protection against symptomatic infection & severe outcomes caused by the 4 currently circulating variants of concern..."
— Isaac Bogoch (@BogochIsaac) July 5, 2021
Results from Ontario: https://t.co/An0p01sbw9👇
By @DrJeffKwong et al pic.twitter.com/4nHi6s5th5