Premier Doug Ford is set to make an announcement on Thursday afternoon on the progress of the COVID-19 vaccination plan.
On Monday morning the province launched its online registration for vaccine appointments for those 80 years and older. The system will allow for vaccination appointments to be booked at mass immunization clinics across the province.
Over 325 pharmacies are now distributing the AstraZeneca vaccine in the province.
On Wednesday, three mass vaccination clinics in Toronto opened for those who are eligible.
To date, 1,301,334 doses have been administered in Ontario with 290,659 fully vaccinated.
Ford will provide his update at 1 pm in Hamilton.