Self-portrait on last day of @MGHToronto @ETHPnews walk-in Covid-19 Outreach Centre @SRiverdaleCHC for booster Pfizer vaccine, followup from 2 Astra-Zeneca jabs just over 168 days ago. Short stroll from home, no wait to enter the building at the rear entrance. Supply is widely available, a pharmacy could have been an alternative source. (South Riverdale Community Health Centre, Queen Street East, Toronto, Ontario) 20211127