Pfizer vaccine safe and effective in children as young as 12 

In a study of 2,260 US volunteers aged 12 to 15, preliminary data showed no cases of Covid-19 among fully vaccinated adolescents, compared with 18 among those given dummy shots, Pfizer reported

Vials of the Pfizer vaccine. File Picture: Niall Carson/PA

Pfizer has announced its Covid-19 vaccine is safe and strongly protective among children as young as 12, a step towards possibly beginning jabs in this age group before they head back to school in the autumn.

Most Covid-19 vaccines being rolled out worldwide are for adults, who are at higher risk from the coronavirus.