COVID-19 Vaccines: With Narrowed Authorization For Janssen, US FDA Catches Up To CDC

Citing risk of thrombosis with thrombocytopenia syndrome, FDA restricts adenovirus-based vaccine to adults for whom other vaccines are not accessible or clinically appropriate, or who would not otherwise get a vaccine; action comes almost five months after CDC decided to preferentially favor the mRNA vaccines from Pfizer/BioNTech and Moderna.