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Moderna Shot’s Covid Protection Stays Steady for Months

  • Vaccine maintains high efficacy for months after second dose
  • Biotech’s quarterly earnings, sales top Wall Street estimates
Bloomberg business news
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Moderna Inc. said its Covid-19 vaccine remained 93% effective through six months after the second shot, as it reported second-quarter earnings and revenue that beat expectations.

A final analysis of the company’s late-stage study, described in a statement on Thursday, suggests the vaccine’s protection remains stable for long after recipients complete the standard two-dose regimen. The effectiveness level at six months is just short of the shot’s initial efficacy of 94%.