Table S1 - Rapid MALDI-TOF Mass Spectrometry Strain Typing during a Large Outbreak of Shiga-Toxigenic Escherichia coli

Mass spectrometry results for all study isolates. The column ‘class’ notes the reference classification of an isolate as outbreak related (orec) or non-outbreak related (norec). Columns ‘orecPCR’ and ‘orecMS’ note the classification of an isolate as outbreak related by PCR and mass spectrometry, respectively. Columns ‘p6711’, ‘p10883’ and ‘p10300’ note the detection of a peak at the respective mz-position. Columns ‘maxint6711’, ‘maxint 10883’ and ‘maxint10300’ show the highest signal intensity in a 400 ppm window around the respective mz-position. Columns ‘p6711mz’, ‘p10883mz’ and ‘p10300mz’ show the exact mz position of the detected peak. ‘Columns p6711snr’, ‘p10883snr’ and ‘p10300snr’ show the signal to noise ration of the peak detected at the respective mz-position. Columns ‘p6711int’, ‘p10883int’ and ‘p10300int’ show the signal intensity of the peak detected at the respective mz-position. Columns ‘meanMz’, ‘meanSnr’ and ‘meanInt’ show the mean values for three technical replicates. Prefixes ‘dsd_’ and ‘fae_’ indicate spectrum acquisition by direct sample deposition and formic acid extraction, respectively. (TXT)