Listen • 3:51 The Skagit Valley Chorale in Washington held a rehearsal in early March of 2020 that became a superspreader event for COVID-19. Few activities spread COVID-19 as effectively as singing. It's why choirs around the country have been practicing over Zoom or in parking lots for more than a year now. But as more people are vaccinated against, many choirs are eyeing a return to in-person singing. For the Skagit Valley Chorale in northwest Washington state, the return has highlighted a philosophical split within the group. The choir experienced one of the first and most famous superspreader events in the country, at a rehearsal on March 10, 2020.