"When the time comes for us to receive the vaccine, immediately register so that the target set to achieve herd immunity can be accelerated, which in turn will expedite economic recovery", he said.
The province offered new guidance to regional medical officers of health as supply of the COVID-19 vaccines starts to gradually increase.
Indigenous adults in northern, remote and higher-risk communities, including on-reserve and urban communities.
Highest priority health care workers, followed by very high priority health care workers, in keeping with the Ministry of Health's guidance.
Staff and essential caregivers in long-term care homes, high-risk retirement homes and First Nations elder care homes.
He added the government would "not rest" until vaccines were offered to all of the Joint Committee on Vaccination and Immunisation's top nine priority groups by the end of April, and after this all adults.
Staff, residents and caregivers in retirement homes and other congregate care settings for seniors.
Health-care workers who the Ministry of Health as categorized as "high priority", such as staff in mental health and addictions services, and sexual health clinics.
Adult recipients of chronic home care.
Ahead of the anticipated arrival of more COVID-19 vaccine doses in the coming weeks, the province has now confirmed who will be prioritized next for its vaccination program.
He added that the Ontario government has almost finished offering a first dose to all residents of long-term care homes and high-risk retirement homes in the province.
Some 15 million people, or 22% of the United Kingdom population, have received their first shot or were offered one.
But the federal government has indicated that Canada expects to ramp up its vaccination effort this spring when the country receives an influx in vaccines next month.