In this photograph taken from behind a window, doctors work on Covid-19 patients in the intensive care unit of San Matteo Hospital, in Pavia, northern Italy, Thursday, March 26, 2020. The San Matteo hospital is where Patient 1, a 38-year-old Unilever worker named Mattia, was kept since he tested positive for Covid-19 on Feb. 21 and opened Italy’s health care crisis. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. (Claudio Furlan/LaPresse via AP)

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