Coronavirus April 6, 2020 6:14 pm Boston Heart Diagnostics Develops Antibody Test for Coronavirus A Framingham company is offering a new blood test to show if someone has had COVID-19 even if they have already recovered. 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