Pfizer and BioNTech's Covid-19 vaccine is just 39% effective against delta in Israel, but still provides strong protection against severe illness and hospitalization.
"demonstrating 88% effectiveness against hospitalization and 91% effectiveness against severe illness"
Preventing severe illness and hospitalization is far, far more important than preventing infection. This study also had a smaller sample size and duration than most other studies of vaccine against the Delta variant, and a similar study out of the UK showed it at over 80% against Delta.
"demonstrating 88% effectiveness against hospitalization and 91% effectiveness against severe illness"
Preventing severe illness and hospitalization is far, far more important than preventing infection. This study also had a smaller sample size and duration than most other studies of vaccine against the Delta variant, and a similar study out of the UK showed it at over 80% against Delta.
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Severe infection as in life threatening? Does non life threatening brain damage count as severe?