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

Aug 14, 2020

Why isn’t the potential of contact tracing being realized right now in the US? Can an MMR booster protect me from COVID-19? Is it better to go to the grocery store several times a week or make one longer trip? Will social distancing and masks make for a lighter flu season? Can a COVID test become negative if it sits too long before processing? Should I shave my beard?

Dr. Crystal Watson from the Center for Health Security and Dr. Josh Sharfstein address your questions submitted to