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The P4 laboratory, on the campus of the Wuhan Institute of Virology, in Wuhan, in China's central Hubei province. (Hector Retamal/AFP via Getty Images)
Senior Fellow, National Security Institute at George Mason University.
Roslyn Layton is a Senior Fellow at the National Security Institute at George Mason University.
Roslyn Layton is a Senior Fellow at the National Security Institute at George Mason University.
This event has been postponed until further notice.