Pray, tell me: What does it mean that the vaccine was 52% effective?
ML/NJ
That happens when the early antibodies fade away and the T-Cell immunity hasn’t yet kicked fully in.
48% of immunized people can get COVID-19 during that time.
“Pray, tell me: What does it mean that the vaccine was 52% effective?”
Pfizer trials had about 44k people.
Vaccine 8 cases
Placebo 192 cases
Math calculated 95% effective.