Massachusetts December 9, 2020 7:03 pm How Contact Tracing Is Conducted in Massachusetts It has been eight months since the start of Massachusetts’ contact tracing program. US & World Videos 1:39 Lawrence police cracking down on illegal dirt bikes 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 2:30 Putting an increase in COVID cases into context 1:41 COVID cluster prompts masking at Beth Israel Deaconess Medical Center 0:50 COVID cluster at hospital prompts return of mask requirement in affected unit