What do we know about covid-19 vaccines in under 5s?

It took a year for covid-19 vaccines to be tested and approved for use in children. As countries now reach out to the youngest age group, David Cox reports on the evidence for their effectiveness and deployment. On 18 June 2022, regulators in the US voted to authorise the rollout of Pfizer and Moderna’s covid-19 vaccines to children under the age of 5, meaning that the jabs will now be available to an estimated 20 million babies and toddlers.1 The decision sees the US join Argentina, Bahrain, Chile, China, Cuba, Hong Kong, the United Arab Emirates, and Venezuela in offering covid-19 vaccines to the youngest age category. Regulators in Europe are predicted to follow in the coming weeks.