vaccine was effective and it strongly protects kids as young as 12, a potential step that could put the shot on track to become the second option for school-aged children in America.In adolescents aged 12-17, Moderna's Covid-19 vaccine showed no new or major safety problems in a clinical trial, the developer has said.With global vaccine supplies still tight, much of the world is struggling to vaccinate adults in the quest to end the Covid-19 pandemic.
But earlier this month, the US and Canada authorised another vaccine — the shot made by Pfizer and BioNTech — to be used starting at age 12.US regulators took about a month to review a similar study from Pfizer/BioNtech, which was authorised for ages 12-15 on 10 May.