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Canada says COVID-19 vaccine doses are 'interchangeable'


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Canada says COVID-19 vaccine doses are 'interchangeable'

Canada has released guidance saying that mRNA vaccines from Pfizer and Moderna are interchangeable, and that an mRNA vaccine can safely be administered after a first dose of AstraZeneca vaccine.

The move from Canada's Public Health Agency comes in contrast to the guidance from the US Centers for Disease Control and Prevention, which recommends that vaccine mixing be avoided except in "exceptional situations."

Here are the acceptable combinations, according to Canada's new guidance:

    Preferred: Pfizer (first shot) and Pfizer (second shot); or Moderna (first shot) and Moderna (second shot).

    Acceptable: Pfizer and Moderna; or Moderna and Pfizer.

    Equally acceptable: AstraZeneca and AstraZeneca; AstraZeneca and Moderna; or AstraZeneca and Pfizer.

In other words, according to Canada's new guidance, people who received a dose of mRNA vaccine should be given the same vaccine if it is readily available, but an alternative brand of mRNA vaccine can be offered. Those who had an AstraZeneca vaccine for the first dose can also be the offered the same or an mRNA vaccine interchangeably, the guidance said.


No wonder Canada isn't capable of creating vaccines, they have no clue how to safely administer them according to standard testing.

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