Days after Pfizer said its coronavirus vaccine is 90% effective, Russia said its vaccine is more effective. Experts suspect politics — not just science — is behind those results.
NPR’s Lucian Kim reports.
This article was originally published on WBUR.org.
Copyright 2020 NPR. To see more, visit https://www.npr.org. 9(MDAwMTM1NDgzMDEyMzg2MDcwMzJjODJiYQ004))