Milan’s mayor Giuseppe Sala observes a minute of silence outside the city hall where flags fly at half-mast, in Milan, Italy, Tuesday, March 31, 2020. Italy has observed a minute of silence and flown its flags at half-staff in a collective, nationwide gesture to honor the victims of the coronavirus and their families. 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. Writing on yellow banner refers to Italian researcher Giulio Regeni tortured and killed in Egypt "Truth for Giulio Regeni." (AP Photo/Luca Bruno)