Toward the end of the 19th century, the superintendent of Georgias State Asylum, T.O. Powell, developed a theory to explain rising numbers of tuberculosis and insanity cases among the states African American population. The problem, he asserted, was that Emancipation eliminated the slave systems healthful effects a remarkably ahistorical claim that ignored not only slaverys brutality but also a similar post-war epidemic in white people.

As his racist ideas informed public-health efforts, the consequences reached far beyond the dangers to his charges at the asylum. Today, as the world faces the COVID-19 pandemic, Powells story is a cautionary tale about the consequences of allowing prejudice to override the lessons of science. In an era when essential workers of color are among the least paid and protected, when many of Americas national leaders declare viruses foreign (feeding a spike in anti-Asian violence), and when shocking recent data shows that African Americans are disproportionately dying from the epidemic (making up more than 70% of Chicagos deaths, for example), Powells choices should strike us as frighteningly familiar.

Heres how it played out in Georgia. After making his pro-slavery claims about African Americans health, Powell went on to boost his antebellum-inspired ideas with a simplistic understanding of heredity, which he credited with creating 90% of the cases of insanity within asylums. At a southern professional meeting in 1895, Powell and his fellow superintendents asked themselves: Has Emancipation Been Prejudicial to the Negro? and answered this remarkable query with a resounding YES!!! Two years later, Powell was elected President of the American Medico-Psychological Association, giving him a national platform to spread his attitudes. Powell would soon ally these fatal ideas with new eugenics technologies, including sterilization of his female patients, who were deemed morally unfit.

Crucially, Powells eugenic ideals left him ill-equipped to handle the public-health emergencies raging within his own institution. In his fascination with heredity, he ignored the medical revolution ushered in by the germ theory of disease, particularly Edward Kochs discovery of the tubercle bacillus in 1882a lethal, willful ignorance. Powells yearly reports documented a range of diseases in his asylum that had far less to do with heredity and far more to do with the epidemic conditions created there by his own policies. TB spread rapidly through the air especially in the Colored Building with its 900 black patients. The crowded conditions that allowed that spread were his primary responsibility in a job that he himself called lunacy administration. His patients were also suffering from pellagra from their starvation diet, as the U.S. Public Health Service would later prove.

Adding insult to injury, Powells writing boosted the idea that mental illnesses and TB were the result of degenerate populations too morally depraved or unmanly to survive. When Powell died in 1907, he was proclaimed Georgias greatest philanthropist.

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Fed by a triumphant Jim Crow and a new wave of imperialism, white supremacists continued to promote racist theories of tuberculosis. These grew quickly into such deadly libels as Powell had espoused. Frederick Hoffmans Race Traits and Tendencies of the American Negro and Rudolph Matas The Surgical Peculiarities of the American Negro (both published in 1896) became standard medical texts in the new century. In the early 20th century, the American eugenics movement also fed these racist libels from its base at Cold Spring Harbor on Long Island, funded by the Carnegie Institution and supported by major American universities in the years before Hitlers Nazi Party made the consequences of eugenics all too clear in its program of mass extermination.

Comparing Powells story to the novel coronavirus might sound extreme. But 1.5 million people (as of the end of 2017), disproportionately people of color, are incarcerated in crowded cells in U.S. jails and prisons and an average of more than 50,000 people per day are detained in immigration centers. The virus has already begun its spread for inmates and detainees in conditions of forced proximity with little sanitation. Meanwhile, New Yorks Governor and New York Citys Mayor are left pleading the federal government for help against the rising death rates in the multicultural and international metropolis; even within the city, the areas hit hardest are those with high immigrant, Hispanic and African American populations. And we havent yet seen the virus really hit those countries underdeveloped for centuries by conquest and colonialism.

Allowing these forces to play themselves out is one choice. It is called eugenics, fed by both historic racist animosities and willed ignorance. But there are always better options. On the side of public health in Georgia, African Americans in Atlanta in the early 20th century declared that germs have no color line and tracked TB through neighborhoods, traced contacts, opened clinics, and educated their people on prevention and treatment.

Surely today we should chose the second set of practices over the first. But will we?

Mab Segrest is the author of ADMINISTRATIONS OF LUNACY: Racism and the Haunting of American Psychiatry at the Milledgeville Asylum, available now from the New Press.

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History Shows That When Prejudice Overrides Science, Public Health Is at Risk - TIME