Is the COVID-19 vaccine effective?
Yes. The Pfizer vaccine efficacy was 52% after the first dose and 95% after second dose. The Moderna vaccine shows similar results.
Sources and more information:
https://www.bmj.com/content/371/bmj.m4826
Yes. The Pfizer vaccine efficacy was 52% after the first dose and 95% after second dose. The Moderna vaccine shows similar results.
Sources and more information:
https://www.bmj.com/content/371/bmj.m4826