American Murderer

August 1, 2022
Jarrow (Ambushed!) chronicles the discovery of a deadly parasitic hookworm, the campaign that endeavored to control it, and the epidemic’s social implications in this prodigious work, part of the Medical Fiascoes series, which recounts U.S. public health crises occurring in the 19th and early 20th centuries. In 1902, zoologist Charles Stiles encountered a hookworm pervading the Deep South and named it Necator americanus, or “American murderer.” The parasite spread through human feces and emaciated its victims, who numbered nearly three million. Believing hookworm was “an inevitable ailment of the poor class,” middle- and upper-class white Southerners opposed treatment efforts. Stiles attempted to change their minds by manipulating their racial prejudices, stating that Black people “were better adapted to the parasite and more immune to its most harmful effects”—since it was thought to have originated in West Africa. Scientific and societal intersections are only summarily explored in this introspective work, which features straightforward prose and informative sidebars detailing other historical Southern maladies and the scientists who studied them. Photographs, diagrams, and microscopic slides are included throughout; a timeline, glossary, and additional information conclude. Ages 10–17.