Prognosis

Moderna Says Covid Shot Remains 90% Effective After Six Months

Results echo long-term data from Pfizer-BioNTech vaccine
Shot is more than 95% effective against severe Covid cases

WATCH: Here's why a diversity of vaccines is important in tackling the Covid-19 pandemic.(Source: Quicktake)

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By Robert Langreth

April 13, 2021 at 8:30 PM UTC

This article is for subscribers only.

Moderna Inc.’s coronavirus vaccine remained more than 90% effective after six months, according to a new analysis of data from the company’s final-stage trial.

Beginning two weeks after the second dose, the shot was more than 90% effective overall, and more than 95% effective at preventing severe cases, according to a statement. The company didn’t release further details and said the follow-up results were preliminary as the study is continuing.