Video: How beneficial is a COVID-19 booster shot? Boston doctor explains

279
Published on 8 Dec 2021, 22:10
A new laboratory study suggests two doses of Pfizer's COVID-19 vaccine may not offer enough protection against omicron coronavirus variant.

Subscribe to WCVB on YouTube now for more: bit.ly/1e8lAMZ

Get more Boston news: wcvb.com
Like us: facebook.com/wcvb5
Follow us: twitter.com/WCVB
Instagram: instagram.com/wcvb5
newsautotechmusickids