04-11-2021, 12:24 AM
(04-10-2021, 06:32 AM)ChrisGreene Wrote: Studies indicate that a single dose of Pfizer or Moderna provides more protection than Johnson & Johnson.Actually, the 80% effectiveness of the mRNA first doses is only known for the 1 to 2 weeks from 2 weeks after the first dose until the 2nd dose is given. Â The 67% figure for J&J is from 2 weeks after the shot until end of study. Â Whether the first dose of the mRNA first doses continues to be effective or fades is not known. Â (I would have thought it like lasts for at least 4 months.)
The Lancet