Pfizer and BioNTech said they are developing a COVID-19 booster shot intended to target the highly transmissible Delta variant, according to U.S. media reports on Friday. Concerns continue to rise as the Delta strain has already become the dominant variant in the United States, causing increasing infections.
The two companies said they believe a third shot of their current two-dose vaccine has the potential to preserve the “highest levels” of protection against all currently known variants, including Delta, but they are “remaining vigilant” and developing an updated version of the vaccine, according to a CNBC report.
“These findings are consistent with an ongoing analysis from the companies’ Phase 3 study,” the companies said in a statement. “That is why we have said, and we continue to believe that it is likely, based on the totality of the data we have to date, that a third dose may be needed within 6 to 12 months after full vaccination.”
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