WASHINGTON, United States (AFP) — Novavax said Thursday its Covid vaccine was 82 percent effective among adolescents during the period when the Delta variant was dominant, and the US biotech now plans to submit for regulatory approval in this age group. The two-dose vaccine, which is based on synthetic proteins that mimic the spikes that dot the surface of the virus, was found to be safe and effective among more than 2,200 adolescents aged […]