b
a
700
ST + Serotype
ST + Serotype (no dual O-groups)
eBURST SLV + Serotype
Serotype
Serotype (no dual O-groups)
O-groups
O-groups (no dual O-groups)
H-types
600
Number of combinations
500
400
300
200
100
0
c
0
200
500
1000
Number of Isolates
1500
aEPEC (ST + Serotype)
aEPEC (Serotype)
ETEC (ST + Serotype)
ETEC (Serotype)
Number of combinations
150
Blood (Genome Trakr)
Faecal (aEPEC)
Cattle (Genome Trakr)
Environment (Genome Trakr)
Faecal (ETEC)
Urine (Genome Trakr)
Pig (Genome Trakr)
Turkey (Genome Trakr)
Faecal (Genome Trakr)
Animal (Genome Trakr)
Food
Chicken (Genome Trakr)
100
50
0
0
100
200
Number of Isolates
300
400