More case-counting puzzles
Kaiser looks at some details about case counting in vaccine trials.
Tests
An outlier or the norm
Excerpt from a TV script
Why FDA says stick to the test
Kaiser explains why FDA doesn't think we should just start swabbing our throats instead of our noses.
Real-world studies: limits of knowledge
Kaiser focuses attention on a few aspects of the Mayo Clinic real-world effectiveness study.
One-dose Pfizer is not happening and here's why
Kaiser explores what the Pfizer vaccine trial data say about a one-dose treatment.
Cutting infection rate by half is not the same as protecting half the people from infection
Kaiser explains what 50% vaccine efficacy actually means, and it's not what you think.