Why mixing Pfizer and Moderna vaccines could help Canada end the pandemic sooner

COVID Mix and Match vaccines 20210618

Canadians who are offered a different COVID-19 vaccine for their second shot than their first shouldn't hesitate to mix and match, experts say, as supply temporarily shifts from Pfizer-BioNTech to Moderna.



from CBC | Health News https://ift.tt/3d0LfcH

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