"expect to get booster shots for years"..., page-109

  1. 15,081 Posts.
    The flu shot is modified every year to the prevailing four strains. This year an optional cell-based vaccine rather than egg based was on offer,

    Elderly couple I had lunch with yesterday are eager to get pfizer booster. They had Astra double earlier in the year.. I'm guessing the closer you get to the finish line the more precious the time gap.
 
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