The role of prior infection in the vaccine trials
Kaiser reviews a finding from the J&J vaccine trial about immunity from infection.
vaccine efficacy
More case-counting puzzles
Kaiser looks at some details about case counting in vaccine trials.
Do better
Kaiser reads some misleading NEJM data graphics.
Open questions of the pandemic, part 2
Kaiser continues to discuss open questions of the pandemic, including questions raised by a recent White House graphic.
Probabilities of Covid-19
Kaiser looks at how probabilities lie behind the science of vaccines.
Real-world studies: limits of knowledge
Kaiser focuses attention on a few aspects of the Mayo Clinic real-world effectiveness study.