To the Editor.—
The excellent and interesting article (1982;248:1342-1345) entitled "The Death of Walter Reed" by Drs W. H. Crosby and W. S. Haubrich contains one error. In describing the controlled experiment that elucidated the cause of yellow fever and its means of spread, they state, "none of these volunteers died, but the risk of death weighed heavily on Walter Reed."Clara Louise Maass, a US Army nurse, 1876-1901, was one of these volunteers and died of yellow fever. She was commemorated on a 13-cent stamp on Aug 18, 1976. She was a nurse trained in a New Jersey hospital (Belleville, NJ) that now bears her name.