National Center for Immunization and Respiratory Diseases Director Dr. Nancy Messonnier, speaks during a news conference in January. Messonnier on Friday defended the CDC's handling of a new coronavirus case in California.
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A face mask adorns a statue of St. Francis of Assisi in the town of San Fiorano, one of the places in Italy on lockdown due to the novel coronavirus outbreak. The picture was taken by schoolteacher Marzio Toniolo.
Marzio Toniolo/via Reuters