Increasingly evidence pointing to vaccines reducing infections almost as much as symptomatic cases. V positive signs for reaching herd immunity through vaccines. https://t.co/jS8jCqEIWE— Sam Freedman (@Samfr) February 27, 2021
Increasingly evidence pointing to vaccines reducing infections almost as much as symptomatic cases. V positive signs for reaching herd immunity through vaccines. https://t.co/jS8jCqEIWE