CBS News reports:
COVID-19 vaccine maker Moderna will make a third booster shot for its two-dose vaccine available to Americans by the fall, CEO Stéphane Bancel said this week. Moderna’s vaccine is more than 90% effective against the coronavirus six months after the second shot, studies show. What remains unclear is how long immunity from the virus lasts.
The same is true of Pfizer’s two-dose COVID-19 vaccine. A third booster shot against the virus is not yet required, but health experts say it could provide additional immunity against COVID-19 variants that are beginning to spread to the U.S. from Brazil, South Africa and the United Kingdom.
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Moderna will make a third booster shot for its two-dose COVID-19 vaccine available to Americans by the fall. https://t.co/KAFCunrHUF
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