Want To Mix 2 Different COVID-19 Vaccines? Canada Is Fine With That : Coronavirus Updat... - 1 views
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Canada's public health agency says people can mix COVID-19 vaccines if they want to, citing cases where local supply shortages or health concerns might otherwise prevent some from completing their two-dose vaccination regimen.
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Public confidence is also an issue: Health officials cite a study from late April that found more than 90% of participants said they were comfortable with either the Pfizer or Moderna vaccines, but only 52% of participants said they were comfortable with the AstraZeneca vaccine.
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"we are recommending that someone who received a first dose of the AstraZeneca ... vaccine may receive an mRNA vaccine for their second dose,"
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The agency cites the results of a study in Germany and clinical trials in the U.K. and Spain as supporting the safety of vaccine interchangeability.
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As of late May, 50.6% of Canada's population had received at least one vaccination shot — but only 4.6% of the population was fully vaccinated.
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"Different vaccine products have been used to complete a vaccine series for influenza, hepatitis A, and others to complete a vaccine series for influenza, hepatitis A, and others."
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"Basically, all vaccines work by showing people's immune systems something that looks like an invading virus but really isn't. If the real virus ever comes along, their immune systems will recognize it and be prepared to fight it off.
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"Using two different vaccines is a bit like giving the immune system two pictures of the virus, maybe one face-on and one in profile."
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"Individuals who have received one dose of the Pfizer-BioNTech or Moderna COVID-19 vaccine should receive a second dose of the same vaccine to complete the vaccination series," the spokesperson added.