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First and Second Doses of Different COVID-19 Vaccines can be Safely Combined
June 03, 2021
The Ontario government, in consultation with the Chief Medical Officer of Health and other health experts, is providing updated guidance for individuals who received the first dose of the AstraZeneca vaccine and who have not yet received their second dose, to allow for the mixing of COVID-19 vaccines if desired. This decision is in alignment with updated guidance from the National Advisory Committee on Immunization (NACI) recommendation.
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