Pfizer Vaccine Approved for 12 to 15 Year Olds in Canada – May 5, 2021 Health Canada approves the administration of Pfizer-BioNTech’s COVID-19 vaccine for 12 to 15 year olds. This vaccine was previously reserved for people aged 16 years and over. Clinical trials have shown that it produces enough antibodies in 12 to 15 year olds to counter the coronavirus. We discuss it with Dr. Roxane Borgès Da Silva, public health expert and professor at the School of Public Health of the University of Montreal. Insults and threats of all kinds on social media … Le Devoir newspaper polled a third of ...