While untold Americans tried to do right by older and more vulnerable friends and family members by taking extra precautions and even canceling Thanksgiving gatherings, the nation crossed a ghastly threshold for the aged, sick, and injured in late November: The coronavirus has killed at least 100,000 residents and staff in nursing homes and other long-term care facilities.

The number of deaths is likely under-reported in federal and other data sources, as several states lag in providing information about problems in the facilities. The deaths of those institutionalized also is spiking as Covid-19 cases have, too, from coast-to-coast. “Community spread” poses grave risks to those in institutions.

If these figures are not already bleak, the Wall Street Journal reported that its research finds that there also are “more than 670,000 probable and confirmed Covid-19 cases in long-term care, affecting both residents and staff members.”