Vaccine prevents 98.9% of COVID-19 deaths — Israel
https://www.dw.com/en/vaccine-prevents-989-of-covid-19-deaths-israel/a-56638291
Israel's Health Ministry on Saturday said that the Pfizer-BioNTech vaccine was 98.9% effective at preventing hospitalizations and death caused by COVID-19.
The rate of COVID-19 infections also declined 95.8% among people who received both shots of the vaccine, it said, adding that the vaccine was also 98% effective in preventing infections that prompted fever or breathing problems.
這篇2月11日的文章比較明確
It works: 0 deaths, only 4 severe cases among 523,000 fully vaccinated Israelis
看這篇文章的表2，引用的數據截至2月1日。在第二針七天以後的組別中，沒有病死
https://www.nejm.org/doi/10.1056/NEJMoa2101765
另一篇待發表文章中所得有效性稍低
Starting seven days after the second dose, the effectiveness of the vaccine improved significantly, preventing 92% of confirmed infections, 94% of symptomatic cases, 87% of hospitalizations and 92% of severe cases. The study did not determine the effectiveness of the second dose in preventing deaths due to the virus.
