Ranem Atia works as a contact tracer and case investigator for the Philadelphia Department of Health, playing a critical role for understanding where and how fast COVID-19 is spreading and ultimately, for saving lives. It’s not an easy job. To do this work effectively, Ranem and her fellow contact tracers need to be be good detectives, social workers and telemarketers. She takes us behind the scenes to explain how she breaks the news when someone tests positive and how she builds trust with the people she follows through their quarantines.