Figure 1.

(a) Date and number of patients presenting at the ED in Lubeck with suspected EHEC-infection. The group was subdivided into patients with approved STEC-infection, patients with stool enteropathogens other than STEC, and patients without any fecal pathogens and those who have no valid STEC-result. (b) Nation-wide epidemiology of diarrhea onset in patients with approved STEC-infection with or without hemolytic uremic syndrome (HUS). Peak of diarrhea onset was at 21st of May; arrow to the left side indicates median incubation period of eight days and arrow to the right side indicates median reporting delay of > one week (adapted from [1]).