Coronavirus Cases Slow in U.S., but the Big Picture Remains Tenuous

“At this point, there is uncertainty,” said Alessandro Vespignani, director of the Network Science Institute at Northeastern University, who has been modeling the path of the virus. “Probably the next week will be one of the crucial ones because if we see more decrease of cases we are still on a ‘good’ trajectory — if not, it really might be more problematic for the future.”

Julie Bosman reported from Chicago, Amy Harmon from New York, and Mitch Smith from Overland Park, Kan.