London ambulance paramedics walk towards the entrance to the ExCel center, which is being turned into a 4000 bed temporary hospital called NHS Nightingale to deal with coronavirus patients, the hospital is due to open this week, London, Monday, March 30, 2020. 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.(AP Photo/Matt Dunham)