coronavirus July 31, 2020 11:18 pm New Research Prompts Concern Over Returning to Class As school districts decide how to start the year, new research about children and how they carry coronavirus is raising concerns. US & World Videos 2:50 Rally held in Boston in support of Jewish college students 3:28 Forecast: Mostly cloudy, few showers tonight 0:16 4 people seriously hurt after boat sinks off Cape Cod 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 14:37 @Issue extra: A retrospective on the Boston 2024 Olympics bid