Protection From Our COVID-19 Vaccine Still Strong Six Months On: Moderna

The vaccine maker, which will be updating investors on the progress of its vaccines at an event on Wednesday, said the six-month follow-up of its original late-stage study of the vaccine showed that vaccine efficacy remained consistent with its previous updates.

Moderna Inc said on Tuesday that its COVID-19 vaccine still showed strong protection against the illness six months after people received their second shot, with efficacy of more than 90 percent against all cases of COVID-19 and more than 95 percent against severe COVID-19. The vaccine maker, which will be updating investors on the progress of its vaccines at an event on Wednesday, said the six-month follow-up of its original late-stage study of the vaccine showed that vaccine efficacy remained consistent with its previous updates. The company has also started testing new versions of the vaccine that target a concerning new variant of the coronavirus, which was first identified in South Africa and is known as B.1.351. It said both versions of the vaccine that it is testing, including a multivalent vaccine that combines the newly designed vaccine with the previous one, increased neutralizing antibody titers against variants of concerns in mice, with the multivalent providing the broadest level of immunity.