Only 1 vaccine program in history (Covid) went from pathogen identification to success in < 1 year.
This week one vs malaria got the green light by @WHO after none for 140 years
An mRNA 💉 vs HIV, 38 years later, starts a major trial next month
graph by @MaxCRoser@OurWorldInData
I'm so glad to see that Pfizer has data to submit for their vaccine for 5-11 year olds. But any strong assertions about safety, such as for low incidence side-effects like myocarditis, cannot made from a trial of ~1500 children.