Fig. 2: Quality control (QC) and sequence types (STs) of study isolates.

a Number of E. coli isolates selected for WGS for this current study. 2012 and 2021 were years for which isolates were only selected from part of the year. b Frequency of different STs in the collection, most frequently isolated STs are colour coded, previously untyped STs highlighted in teal. c Frequency of the different STs by year, colour code as in (b).