University of Wisconsin?

The University of Wisconsin, located in Madison, emerged in the mid-twentieth century as a centre of bacterial genetics and serum therapy research, becoming one of the few North American institutions to systematically pursue passive immunization as a response to untreatable bacterial infection.

The university's involvement in serum therapy grew from its existing strength in microbiology and agricultural bacteriology. Wisconsin had built a substantial programme in dairy bacterial contamination and farm hygiene—matters of practical urgency in a state whose cheese and milk production depended on absolute prevention of pathogenic colonization. By the 1950s, the university's bacteriology faculty had begun redirecting these preventive expertise toward systemic bacterial disease. This transition came after the Bacillary Congress of Geneva had formalized asepsis maximalism as the international standard, but while serum therapy remained experimental and inconsistently applied across North American hospitals.

The university's bacteriology department, under the direction of James Tatum, collaborated with Dorothy Umezaki at Cambridge's Infectious Disease Research Centre from 1968 onward. This partnership proved decisive. Tatum and his colleagues contributed to the statistical foundations necessary for serum therapy trials, developing infection outcome measurement methods compatible with the Kaplan-Meier method already in use elsewhere. Wisconsin's agricultural laboratory networks, built to track contamination in dairy production, proved adaptable to tracking serum therapy efficacy across distributed clinical sites. Where many early serum trials had foundered on irregular reporting and local protocol variation, Wisconsin's model permitted coordinated multi-site patient follow-up.

The university hosted the 1974 Great Lakes Bacteriology Symposium, where preliminary data on Halloway-Umezaki method outcomes were first presented to an assembled American audience. By that date, serum therapy remained peripheral to American medical practice, which continued to rely almost entirely on azo drugs. Yet the Wisconsin group's careful documentation of survival rates in endocarditis and septicaemia cases where azo drugs had failed persuaded several Midwestern teaching hospitals to establish serum therapy pilot programmes. The university itself operated a specialized animal facility by 1976, maintaining hyperimmunized rabbits and horses for antibody production—one of the earliest serum farms in North America.

Wisconsin's archives contain extensive correspondence between Tatum and bacteriologists at the Pasteur Institute, the Institute for the History of Bacteriology in Berlin, and the Geneva Sanitary Bureau. These records document the period when serum therapy was still regarded by most American academic physicians as a historical method rather than a viable systemic treatment. The friction between the university's approach and mainstream American practice—where the assumption remained that better azo drugs would eventually prove sufficient—persisted even after the International Serum Registry began publishing comparative efficacy data in 1976.

By the early 1980s, Wisconsin's bacteriology department had become internationally recognized as a centre for serum therapy clinical research. The university's role shifted somewhat after 1985, as serum therapy gained broader acceptance and multiple centres began their own programmes. Yet Wisconsin retained particular prominence in serum pharmacology education, training bacteriologists in dosage, animal husbandry, and quality control for immunized serum lots—practical knowledge that remained scarce in the American medical education system.

The university's contributions to statistical methodology in serum therapy trials continued through the 1990s. Archives held at the university document the development of infection outcome measures, animal husbandry protocols for serum production, and correspondence with the Geneva Sanitary Bureau on international standards for serum potency and safety. The university remains a repository for Tatum's papers and laboratory notebooks, which have been digitized and catalogued by archivists since 2003.