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Evidence and experts to help you understand today’s public health news—and what it means for tomorrow.

Oct 15, 2021

In this episode, Dr. Josh Sharfstein talks with researchers who break down two papers in the news. Dr. Nikolas Wada talks about a study led by researchers in Bangladesh and the U.S. which tested whether masks really help to reduce the spread of COVID-19. Dr. Kate Grabowski discusses a Lancet paper from the U.K. about “test to stay” programs in schools and whether the use of rapid tests is better than quarantining when a child tests positive. These researchers are part of the Hopkins novel coronavirus research consortium, with many summaries of new studies available at