• 8 weeks between shots is the 'sweet spot' for giving Pfizer's two-dose COVID-19 vaccine, UK researchers say

    4 days ago - By Business Insider

    A paramedic flushes a syringe before preparing a shot of the Pfizer/BioNTech vaccine.
    Leon Neal/Getty Images
    Giving two doses of Pfizer's shot eight weeks apart could best protect against the Delta variant.
    A study found that the eight-week delay boosted immune responses higher than waiting 21 days.
    It's a trade-off between needing two doses and optimizing the immune response, the researchers said.
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    Giving the second dose of Pfizer's two-dose COVID-19 vaccine eight weeks after the first is the "sweet spot" to protect against the fast-spreading...
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