Linda Frum @LindaFrum
RT @alanfryermedia: Funny how the Canadian science shifts in sync with Canadian supply. US CDC still recommending against mixing. — PolitiTweet.org
Keith Baldrey @keithbaldrey
Many people who got Pfizer for a first dose will likely get Moderna as their second dose as the federal government… https://t.co/0Wa5UglUUP