A good control for #coronavirus is to see how much flu transmission is being affected. In California flu incidences are way down compared to prior years. Social distancing is working.

A good control for #coronavirus is to see how much flu transmission is being affected. In California flu incidences are way down compared to prior years. Social distancing is working. pic.twitter.com/uNEAABjcGR

— Matt Stoller (@matthewstoller) March 31, 2020