The new coronavirus has hit more than 2,100 nursing homes and other senior facilities around the U.S., killing over 2,300 people, according to a survey by The Wall Street Journal, an indication the pandemic’s toll in these facilities has been greater than the federal government has reported.

Nursing homes and other senior-living facilities in the U.S. have reported at least 15,473 coronavirus cases, according to data collected from 37 states that responded to requests from the Journal, which contacted all 50 health departments.

Families with mothers and fathers in nursing homes, or preparing to place a relative in a facility, have wanted to know the risks their loved ones face, advocates say. Yet disclosure practices vary, and there often isn’t information publicly available about individual facilities’ coronavirus cases.