Deaths among reported STEC-illnesses in Germany 2004–2011 - by serogroup.

Percentages are calculated within serogroup categories, *in years. **no fatalities were reported for infections with STEC O91, O103, O111, and O128. ***serogroup of the fatal case in this category was reported as Ont (non-typable O antigen). Abbrevations: HUS – hemolytic-uremic syndrome, IQR – interquartile range.