Moderna: Third booster COVID-19 vaccine shot available by fall

Moderna says a third booster shot for its two-dose COVID-19 vaccine will be available in the United States by the fall.

The announcement was made by company CEO Stéphane Bancel, CBS News reported.

Studies show that the Moderna vaccine is more than 90 percent effective six months after the second dose, but it is unclear how long it provides protection. That is also true of the Pfizer two-dose vaccine.

“There will be likely a need for a third dose, somewhere between six and 12 months. And then from there, there will be an annual revaccination. But all of that needs to be confirmed,” Pfizer CEO Albert Bourla said last week during a virtual event hosted by CVS Health, CBS News reported.

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