Tag: mass vaccination

1. The initial doses of the Pfizer and AstraZeneca vaccines were 91% and 88% efficacious in reducing COVID-19 hospitalizations one month after vaccination. 2. Combined vaccine efficacy of the Pfizer and AstraZeneca in preventing hospital admission due to COVID-19 among those aged 80 years and older was approximately 83%. Evidence Rating...
1. A nationwide mass vaccination setting was shown to be effective against coronavirus disease 2019 (COVID-19) related outcomes such as infections, hospitalization, and death after the second dose. 2. The study did not include participants affiliated with medical roles or those exposed to a medical environment such as health care...