Including children and adolescents in vaccination programmes is critical to getting the Covid-19 pandemic under control, some experts believe.
Although some major clinical trials testing Covid-19 vaccines have included only adult participants, more recent trials are enrolling younger age groups to test whether the vaccine can protect them against Covid.
Last month, for instance, Pfizer announced that it had completed the enrolment of children aged between 12 and 15 in a study testing its Covid-19 vaccine (developed with BioNTech), as the US drug company seeks to expand the jab's use among all age groups.