Coronavirus Conversations: Surging coronavirus cases and new vaccines

As coronavirus cases spike, the US and other countries are looking to measures such as COVID-19 vaccines and rapid self-testing. But steps such as mask-wearing and social distancing remain critical. As part of our regular series of conversations about the pandemic and as a special episode in The World's podcast feed, reporter Elana Gordon moderated a discussion with Harvard epidemiologist Megan Murray for the latest insights.