Families of healthcare workers sickened by Covid-19 denied compensation

James “Mike” Anderson was a hospital employee in suburban Philadelphia with a low-profile but critical job: changing air filters in rooms where patients with Covid-19 were seen. By late March, the county where he worked was reporting as many as 90 cases per day. Anderson, 51, handled air filters and other surfaces that might have been contaminated with the deadly virus, which is also known to hang in the air. In April, Anderson came down with…