Moderna says a third shot of its COVID-19 vaccine may be needed to protect against variants

Moderna says a third shot of its COVID-19 may be needed against variants | Photo by Ivan Damanik/NurPhoto via Getty Images

Pharmaceutical company Moderna said its COVID-19 vaccine is 93 percent effective through six months after the second dose, but as new variants of the virus emerge, people who received the vaccine may need a booster shot before winter.

The company made the announcement as part of its second-quarter earnings release Thursday.

“We are pleased that our Covid-19 vaccine is showing durable efficacy of 93 percent through six months, but recognize that the Delta variant is a significant new threat so we must remain vigilant,” Moderna CEO Stéphane Bancel said in a statement with the earnings release. Moderna president Stephen Hoge said during an earnings call that a third booster “will likely be necessary to keep us as safe as possible through…

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