7 Matching Annotations
  1. Aug 2021
    1. Full vaccination (with the mRNA vaccines, at least) is about 88 percent effective at preventing symptomatic disease caused by Delta. Breakthrough infections are possible but affect only 0.01 to 0.29 percent of fully vaccinated people, according to data from the Kaiser Family Foundation. Breakthroughs might seem common—0.29 percent of 166 million fully vaccinated Americans still means almost 500,000 breakthroughs—but they are relatively rare.

      rarity of breakthrough infections

  2. Jul 2021