Pfizer-BioNTech and Moderna’s mRNA platforms are amazing—but they could easily have been overtaken by more conventional rivals.
The risk of nasty side effects in the Moderna and Oxford trials should be made clear now, before it ends up as fodder for the skeptics.
Two new research papers try to shed some light on a popular theory, but the evidence is still very weak—and could point to confirmation bias.
No one complained about the lack of evidence for 20-second hand-washing. So why did we treat face masks differently?