STATEN ISLAND, N.Y. — A booster shot of Moderna’s Covid-19 vaccine generated a promising immune response against variants first identified in South Africa and Brazil, respectively, the company announced citing early data from an ongoing clinical trial, according to CNBC.
When a virus has one or two new mutations, it becomes a variant of the original virus. A booster shot is an additional shot that would increase one’s immunity to a particular virus.
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, according to CBS News.
The booster shot would be a third dose distributed six to eight months after individuals have been fully vaccinated. It would increase the level of antibodies and immunity against variants. 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.
Pfizer-BioNTech is working diligently to develop a variant booster shot. In April, Pfizer CEO Albert Bourla said some sort of booster shot would likely be needed in the next 12 months.
The CDC has not established a timeframe or need for booster shots for fully vaccinated individuals.
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The Link LonkMay 16, 2021 at 06:03PM
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