Werber D, Beutin L, Pichner R, Stark K, Fruth A (2008): Shiga Toxin-producing Escherichia coli Serogroups in Food and Patients, Germany
Emerg. Infect. Dis. 14 (11): 1803-1806.

We compared 61 Shiga toxin-producing Escherichia coli (STEC) serogroups from 448 food isolates with 71 STEC serogroups from 1,447 isolates from patients in Germany. Two thirds (41/61), representing 72% of food isolates, were also found in patients. Serogroups typically isolated from patients with hemolytic uremic syndrome were rarely found in food.