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  • Pfizer Says Tweaked COVID-19 Vaccines Boost Omicron Protection

    1 month ago - By Time

    Pfizer announced Saturday that tweaking its COVID-19 vaccine to better target the omicron variant is safe and works - just days before regulators debate whether to offer Americans updated booster shots this fall.
    The vaccines currently used in the U.S. still offer strong protection against severe COVID-19 disease and death - especially if people have gotten a booster dose. But those vaccines target the original coronavirus strain and their effectiveness against any infection dropped markedly when the super-contagious omicron mutant emerged.
    Now with omicron's even more transmissible...
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  • Pfizer says its Omicron-containing boosters outperform current vaccine

    1 month ago - By STAT

    Pfizer said Saturday that using new versions of its Covid-19 vaccine as boosters led to a superior antibody response against the Omicron variant compared to its current shot.
    The results in some ways mirror those released by Moderna earlier this month. Data from both companies will be evaluated on Tuesday by a panel of experts convened by the Food and Drug Administration in the hopes of deciding what strains of the SARS-Cov-2 virus should be included in booster shots for the fall. Companies will need lead time to manufacture doses of new vaccines if it is decided they are needed.
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