Pfizer, Moderna and Novavax are slated to deliver new single-strain Covid shots targeting the omicron subvariant XBB.1.5 in September.

  • ono
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 year ago

    Given that all covid vaccines have lost most of their efficacy in just a few months, once a year doesn’t seem like enough.