A safety monitoring system flagged that U.S. drugmaker Pfizer Inc and German partner BioNTech's updated COVID-19 shot could be linked to a type of brain stroke in older adults, according to preliminary data analyzed by U.S. health authorities.
It sounds like it isn't even a study. It's some kind of medical records system that popped a flag bc a certain threshold of people in a certain group had a certain medical issue.
It sounds like it isn't even a study. It's some kind of medical records system that popped a flag bc a certain threshold of people in a certain group had a certain medical issue.