Pfizer-Biontech Shot Stops COVID-19 Spread, Israeli Study Shows

The video discusses a study from Sheba Medical Center on the Pfizer vaccine, showing 84% protection after the first dose and 94% after the second. It highlights the importance of continued precautions and the potential for herd immunity. The study is exploring the vaccine's effect on transmission and viral load. The discussion also covers the impact of variants and the adaptability of vaccines, suggesting annual vaccinations may be needed.

How does the effectiveness of the vaccine relate to potential mutations?

What future vaccination strategy is suggested for dealing with variants?