Supported by:
Brown School of Public Health   The Rockefeller Foundation

the evidence

At least every second infection in this pandemic comes from someone who wasn’t sick when they infected others. To stop this silent spread of the virus, we all need to know more about asymptomatic spread, and how testing millions of Americans every day can prevent outbreaks. In this section, we bring you up to speed on the latest evidence on COVID-19 testing.

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