The World Health Organization does not recommend COVID-19 booster shots “at this time,” citing a lack of data on their effectiveness, CNBC reported.
Dr. Kate O’Brien, the WHO’s director of immunization, vaccines, and biologicals, said the organization is still researching whether a booster shot is required for increased protection against the variants.
Executives from Pfizer Inc (NYSE: PFE) - BioNTech SE (NASDAQ: BNTX), Moderna Inc (NASDAQ: MRNA), and Johnson & Johnson (NYSE: JNJ) have all said Americans would eventually need a booster following their first series of vaccinations.
Pfizer plans to submit its application to U.S. regulators for a booster dose in August.
If the WHO endorsed a booster shot, O’Brien said it would likely only be for select groups of recipients, like the elderly or people with other conditions that make them vulnerable to severe disease.
She added that the WHO is also evaluating whether to approve booster shots “on a product-by-product basis, because not all the products are the same.”
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