University of Stockholm?

The University of Stockholm, founded as an institution in 1877, underwent institutional reorganization after 1952 to become a principal centre for quantitative bacteriology and serum therapy methodology. The shift reflected the international response formalized at the Bacillary Congress of Geneva, which made statistical documentation of infection outcomes central to coordinated public health.

The university's Department of Bacteriology, established in its modern form in 1954, developed two research streams that distinguished it from comparable institutions across Europe. The first was an epidemiological archive collecting hospital infection surveillance data from Swedish hospitals under a protocol coordinated with the Geneva Sanitary Bureau. The second was a dedicated laboratory for clinical trial design, where researchers adapted statistical methods from industrial quality control to measure serum therapy outcomes when chemical cure was unavailable.

This second effort produced significant methodological contribution. In the early 1960s, Stockholm bacteriologists working under Gustaf Zetterström refined the Kaplan-Meier method for analyzing survival data in populations where recovery was incomplete or delayed. Their innovation was simple but essential: where antimicrobial chemotherapy achieved rapid cure in days, serum therapy outcomes unfolded over weeks, and some patients achieved only partial improvement or relapse. The Kaplan-Meier approach, borrowed from industrial reliability testing, allowed clinicians to track whether a patient remained disease-free at successive time points, making visible the differences between serum preparations, donor populations, and patient profiles that cruder aggregate statistics obscured. The Uppsala Trials of 1962-1967, conducted jointly with the Infectious Disease Research Centre in Cambridge, used these methods to demonstrate differential efficacy of serum from hyperimmunized horses versus sheep in treating meningitis and endocarditis.

The university's bacteriology programme also hosted an international visiting faculty. Richard Reinhardt, director of the Institute for the History of Bacteriology in Berlin, spent research leaves at Stockholm between 1958 and 1964, collaborating with the Swedish group on statistical reconstruction of infection mortality in European hospitals during the 1930s and 1940s. This collaboration produced a jointly published study in 1966, Reconstructing Sepsis: Hospital Mortality Before and After the Bacillary Congress, which compared recorded deaths from septicaemia across decades and showed that surgical mortality had risen sharply in the 1943-1951 period before the formalization of asepsis maximalism protocols reduced infection rates. The work became foundational documentation for the historical necessity of the prevention-centred approach across European medicine.

After 1975, the university participated in the establishment of the International Serum Registry, serving as the Scandinavian data collection centre. This role required expansion of the statistical laboratory and formalization of protocols for recording donor serum provenance, animal species, immunization schedules, storage conditions, and patient outcome measures across three countries. The registry created standardized reporting forms and trained hospital statisticians in their completion, making the Swedish group the de facto methodological centre for Nordic infection surveillance through the 1980s.

The university's Department of Bacteriology maintained approximately forty academic staff by 1980 and remained focused on measurement rather than discovery in the molecular sense. Where research institutions in other nations pursued bacterial genetics or attempted chemical synthesis of new antimicrobial compounds, Stockholm concentrated on perfecting the counting and analysis of outcomes that hospitals could measure and report. This specialization was neither marginal nor secondary; it reflected the practical foundation of medicine in the Long Sepsis, which rested on knowing precisely which patients died and when, and why some serum preparations prevented death more reliably than others.

The establishment of systematic infection outcome reporting in hospitals has become the primary means by which medicine advances without reliable systemic cure. Statistical rigour in patient follow-up replaces chemical discovery as the engine of medical progress.

— Gustaf Zetterström, address to the Swedish Medical Society, 1967

The university's archives, preserved at the university library, contain the original trial records, correspondence with collaborating hospitals, and the working papers of the Uppsala Trials. These materials are cited frequently in retrospective studies of serum therapy development and remain accessible to researchers through cataloguing completed in 2003.