WUHAN, China (April 7): While most people in the Chinese city of Wuhan were hunkered down in their homes at the height of the country’s coronavirus outbreak, Lin Wenhua was out on the empty streets in his car, driving toward the next person or task on his list.

Sometimes it would be a request to take a doctor to the hospital, the 38-year-old filmmaker recalled. Once, he was asked to help drive a pet-sitter to a friend’s house.