Probabilities of Covid-19
Kaiser looks at how probabilities lie behind the science of vaccines.
numbers rule your world
Blood clots: is there a there
Kaiser looks at the controversy over blood clots and the Astrazeneca vaccine.
Real-world studies: limits of knowledge
Kaiser focuses attention on a few aspects of the Mayo Clinic real-world effectiveness study.
Vaccines free you from the herd
Kaiser looks at covid-19 vaccination campaigns.
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.