coronavirus pandemic February 25, 2021 7:47 pm What Herd Immunity Is and How We Get It There’s a lot of talk these days about how herd immunity will be our ticket out of the pandemic. Here’s what you need to know about what herd immunity is and how we get it. US & World Videos 1:39 Lawrence police cracking down on illegal dirt bikes 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 2:30 Putting an increase in COVID cases into context 1:41 COVID cluster prompts masking at Beth Israel Deaconess Medical Center 0:50 COVID cluster at hospital prompts return of mask requirement in affected unit