COVID-19 vaccination clinics open by April 5.That will bring the total number of operating mass immunization sites to six. Toronto to open 3 mass vaccination clinics 2 weeks early due to increase in supply Mayor John Tory says that the Malvern Community Recreation Centre and the Mitchell Field Community Centre will begin COVID-19 vaccinations on March 29.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]He says that The Hangar Sport and Events Centre will open on April 5.Three clinics — the Metro Toronto Convention Centre, the Scarborough Town Centre and the Toronto Congress Centre — are already scheduled to open for mass vaccinations on Wednesday.All six clinics will operate from 11 a.m.