COVID-19 vaccine for use in adolescents aged 12 and older, following a study that showed doses were “highly effective” at preventing infection in that age group.The submission was made on Monday morning and is currently awaiting Health Canada’s go-ahead.“We are pleased to announce that we have submitted for authorization of our COVID-19 vaccine for use in adolescents with Health Canada,” said Stéphane Bancel, chief executive officer of Moderna.“We are encouraged that the Moderna COVID-19 vaccine was highly effective at preventing COVID-19 and SARS-CoV-2 infection in adolescents.” Pfizer COVID-19 vaccine approved for Canadians 12 and over, Health Canada says The submission comes just over a month after Health Canada approved the Pfizer.