NPR's Howard Berkes reports today on the largest cluster of severe black lung disease ever reported in the U.S.

NPR's Howard Berkes reports today on the largest cluster of severe black lung disease ever reported in the U.S. The story is part of his 14 month investigation that broadcast on February 6, 2018 on All Things Considered.

Berkes reports: During the period 2013 to 2017, and from just three clinics in southwestern Virginia, more than 400 cases of Progressive Massive Fibrosis were diagnosed and now confirmed by NIOSH.

The findings are published today in the Journal of the American Medical Association. The quote "Coal-mining disasters get historic markers. Black lung deaths just get headstones," comes from Ken Ward, Jr. of the Charleston Gazette, in a piece he wrote in 2014.