OTTAWA – Canada’s Chief Public Health Officer Dr Theresa Tam says “active” discussions are underway with various countries, including the US, to allow the entry of Canadians with a mixed COVID-19 vaccine dose.
Tam said the Public Health Agency of Canada (PHAC) is presenting data to collaborators internationally on the effectiveness of mixed dosing schedules, such as the AstraZeneca supplements followed by the Moderna or Pfizer supplements.
“They [discussions] Making pretty good progress. But every country is trying to figure out vaccine requirements right now, and the US… is just beginning to pull their policy together,” she told reporters during a COVID-19 briefing on Friday. Said while doing
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The US Centers for Disease Control and Prevention website currently states that data on the safety and efficacy of the mixed-product series is limited, and that both doses of the series should be completed with the same product.
Canadians can still fly to the US if they have evidence of a negative molecular or antigenic COVID-19 test taken no later than three days before their departure flight.
Countries such as France and Germany have promoted mixing vaccines to invalidate a strong immune response in citizens.
However, while other EU member states have recognized Vaxjeveria, the European-made version of AstraZeneca, some have not authorized COVISHIELD, the Indian-made version of the same vaccine that has also been used in Canada.
The World Health Organization has not issued formal guidelines on dosage mixing and matching, but has advised that this information comes from individual public health agencies.
Tam said PHAC is doing “everything we can” to accredit Canadians’ various vaccine programs, but those hoping to travel abroad should check with their destination country about its specific vaccination policies.
In Canada, more than three million AstraZeneca shots have been administered, more than 43 million Pfizer shots have been administered, and approximately 18 million Moderna shots have been administered.
With files from Granthshala News’ Nicole Bogart.