Progress Report: Pima County making advances in battle with pandemic

Eileen Carroll, left, works on her laptop as her daughter, Lily, 11, attends school remotely from their home in Warwick, R.I, Wednesday, Dec. 16, 2020. When Carroll's other daughter tested positive for the coronavirus, state health officials told her to notify anyone her daughter might have been around. Contact tracers, she was told, were simply too overwhelmed to do it. It's the same story across the U.S., as a catastrophic surge in infections has made it difficult or impossible to keep up with the calls considered critical to controlling outbreaks. (AP Photo/David Goldman)