MONTREAL — The Quebec government says fully vaccinated residents who have received the Oxford-AstraZeneca COVID-19 vaccine can receive a third dose of an mRNA vaccine before travelling.
Public health officials are offering the extra shot because some countries don't recognize the Oxford-AstraZeneca vaccine made at the Serum Institute of India. But officials warned Monday it's up to the recipient to seek advice and weigh the risks before getting a third dose of the Pfizer-BioNTech or Moderna vaccines.
A spokesman for the Health Department said in an email Monday a third dose doesn't necessarily provide more protection compared with two doses, adding that the safety of receiving two shots of AstraZeneca and an mRNA vaccine is unclear.
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