Moderna booster increases antibodies against Covid-19 variants, early data shows

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.

FILE PHOTO: A vial and sryinge are seen in front of a displayed Moderna logo in this illustration taken January 11, 2021. REUTERS/Dado Ruvic/Illustration

Moderna Inc said on Wednesday early human trial data shows that a third dose of either its current Covid-19 shot or an experimental new vaccine candidate increases immunity against variants of Covid-19 first found in Brazil and South Africa.

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 of both Moderna’s existing shot and a version developed to protect against the South African variant of Covid-19 called mRNA-1273.351.

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