Pfizer and BioNTech announced Thursday they are developing a Covid-19 booster shot intended to target the delta variant.
announced Thursday they are developing a Covid-19 booster shot intended to target the delta variant as concerns rise about the highly transmissible strain that is already the dominant form of the disease in the United States.
"As seen in real world evidence released from the Israel Ministry of Health, vaccine efficacy has declined six months post-vaccination, at the same time that the Delta variant is becoming the dominate variant in the country," the companies said in a written statement. Clinical studies could begin as early as August, subject to regulatory approvals, the companies said.from the games this year after Japan declared a state of emergency that's meant to curb a wave of new Covid-19 infections due in part to the delta variant.
In the U.S, health officials are urging all eligible Americans to get vaccinated as quickly as possible, especially before the fall season when delta isabout 1,000 counties in the U.S.
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