Officials identified eight new cases of the B.1.351 (South African variant), and so the total case count in the province rose to 309.
The dates highlighted in blue are when the spring melt may have affected the data
Ontario does not now report how many cases of the B.1.617 variant, originally found in India, are found in the province.
772 cases of P.1, which is the variant strain that originated in Brazil.
Approximately 800,000 doses of the Pfizer COVID-19 vaccine are expected to arrive in Ontario per week at the start of May, ramping up to 940,000 doses per week by the end of May.
As of 8 p.m. on April 30, the province reported 5,247,684 doses of vaccine against COVID-19 have been administered.
The province has repeatedly said they have the capacity to administer about 150,000 vaccines a day.
The three forward sortation areas in Ottawa are among 114 so-called hot-spots identified across Ontario that seeing an expanded vaccine rollout as of Monday. The number of cases for any city or region may differ slightly from what is reported by the province, because local units report figures at different times.