Early human trial data shows that a third dose of either Moderna’s current COVID-19 shot or an experimental new vaccine candidate increases immunity against variants of the virus behind COVID-19 first found in Brazil and South Africa, the company announced on Wednesday.
The booster shots, given to volunteers previously inoculated with Moderna’s two-dose vaccine regimen, also boosted antibodies against the original version of COVID-19, Moderna said.
The early data comes from a 40-person trial testing both Moderna’s existing shot and a version