Canada's National Advisory Committee on Immunization has recommended the use of the Astra Zeneca shot on people 30 and older.
The committee previously recommended the shot for people 55 and older.
Now it recommends that people 30 and up be offered the shot if they don't want to wait for Pfizer or Moderna.
Ontario Health Minister Christine Elliott's office says the province will continue to offer the shot for people 40 and older, with no plans to lower the age limit for now.
So far the province has received just over 900,000 doses of the AstraZeneca vaccine, and the federal government says 4.1 million more doses are due in Canada by the end of June.
To date, there are four cases in Canada linking blood clots to the vaccine.

Norfolk OPP Briefs - July 20th
Oxford OPP Briefs - July 20th
Solicitor Scam
Phase 2 of Oxford Road 2 Construction to Start this Week
Woodstock Candidate Profile - Kelly Gilson
Ingersoll Candidate Profile - Dave Cripps
Impaired Driver Charged in Tillsonburg
StreetFest Moving Forward in Woodstock
Impaired Drivers Charged in Woodstock
Norwich Candidate Profile - Lynne DePlancke
Cheer On the Blue Jays with the Norwich Optimist Club!
Local Organizations Receive Funds from Province
Wildfires Burning Across Northern Ontario
Arrests, Charges and Seizures Happen in Woodstock
WFD Reminding of Open-Air Burns
Woodstonian Wins 50 Grand
South-West Oxford Candidate Profile - Isaiah Friend
News Poll: Post Season Prediction for the Toronto Blue Jays
UPDATE: Air Quality Warning Upgraded to Orange Level
Tim Hortons Camp Day Arrives in Oxford County