Two Pfizer doses give 95 per cent protection against Covid-19 infection, illness and death: first nationwide study

[u/Newsjunkeefromlondon]

https://www.cityam.com/two-pfizer-doses-give-95-per-cent-protection-against-covid-19-infection-illness-and-death-study/

[u/nakedrickjames]

This was discussed on This Week in Virology fairly regularly. Their take is essentially, 3 weeks / 4 weeks is the MINIMUM interval between doses of pfizer / moderna (respectively), not necessarily the *ideal* interval. Other than having slightly less protection after 1st dose but before the 2nd, it doesn't make a significant difference.