4-month gap between COVID-19 vaccine shots could be reduced, some AZ doses may go to waste
by Dilshad Burman
Last Updated May 17, 2021 at 6:20 pm EDT
A COVID-19 vaccine is prepared in Toronto, ON (Steve Russell/Toronto Star via Getty Images)
Ontario health officials say they are hopeful the current four-month interval between COVID-19 vaccine doses will be reduced as vaccine supply increases and more people get their first shots.
Provincial medical officer of health Dr. David Williams said the decision to increase the interval of the vaccines from the manufacturer recommended three or four weeks to four months was made to ensure “maximum benefit in the shortest time, with everybody getting one dose.”