Pfizer and Moderna vaccines reduce Covid-19 hospitalization risk by 94% among older adults, CDC study says

The Pfizer/BioNTech and Moderna Covid-19 vaccines were found in the real world to be 94% effective against Covid-19 hospitalization among fully vaccinated adults ages 65 and older in the United States, according to a new US Centers for Disease Control and Prevention study.
The study also found that the vaccines were 64% effective among those older adults who were partially vaccinated, meaning they had only received one dose of vaccine so far.
These findings are consistent with the vaccines' clinical trial results, which showed an efficacy of about...