Dr. Jen Ashton has what you need to know about reaching global herd immunity. we have of course abc chief medical correspondent dr john ashton with us as we track all the major developments so let’s start off today with…
What a vaccine’s “efficacy rate” actually means. Sign up for our newsletter: http://www.vox.com/video-newsletter In the US, the first two available Covid-19 vaccines were the ones from Pfizer/BioNTech and Moderna. Both vaccines have very high “efficacy rates,” of around 95%. But…
Dr. Jen Ashton shares some positive news about vaccine efficacy.
In this short video, Dr. Hank Bernstein talks about immunity after COVID-19 vaccination. For information about COVID-19 and the vaccines, visit For information about all vaccines, visit
There is still a lot we don’t yet about immunity from COVID-19. How long does vaccine protection last? Will boosters be needed someday? Subscribe to WCVB on YouTube now for more: Get more Boston news: Like us: Follow us: Instagram:
Answers to your latest coronavirus questions from Dr. Jen Ashton.
