COVID-19 vaccine from AstraZeneca-Oxford slightly less effective than first touted: 76% rather than 79% against disease, updated data shows

AstraZeneca released updated information on its COVID-19 clinical trial Wednesday evening, showing an effectiveness rate of 76% instead of the 79% rate it claimed earlier in the week.

https://www.usatoday.com/story/news/health/2021/03/24/astrazeneca-oxford-covid-vaccine-76-effective-not-79-slightly-less-updated-data-shows/6979458002/