Three die as coronavirus death toll rises to 15
Over 4,000 people are infected * 22-year-old in critical condition * Random virus testing starts Monday at three groceries
Medical staff wearing protective masks, glasses and suits treat a patient suffering from coronavirus disease (COVID-19) in an intensive care unit at the Oglio Po hospital in Cremona, Italy March 19, 2020(photo credit: REUTERS/FLAVIO LO SCALZO)