StoneRoad2013's photos with the keyword: vaccine effectiveness

Comparing AstraZeneca and Pfizer vaccination effectiveness over time, from the second dose. In terms of preventing illness serious enough to warrant hospital admission. There is a clear decline, most noticeable for AZ. . . Not my Image : Fair Use & Public Information

Studies indicating waning vaccination effectiveness in the 20 weeks after the second dose. Part of the rationale behind the booster [third] dose campaign. . . Not my Image : Fair Use & public information