Figure 2
Phylogenetic trees of 145 Scottish E. coli O157:H7 isolates and 4 reference USA isolates.
Illustrating (a) Sources: Clinical (
); Cattle (
); Sheep (
); Food/Environment (
); Unknown (
); International (▵), (b) Shiga toxins: stx1a/stx2a (
); stx1a/stx2c (
); stx2a (
); stx2a/stx2c (
); stx2c (
); negative (
); Unknown (
); International (▵), (c) Phage types: PT2 (
); PT21/28 (
); PT32 (
); PT8 (
); Other PTs (
); Unknown (
); International (▵) and (d) SBI genotypes: ASY2a2c (
); SY1a2c (
); SY2a2c (
); SY2c (
); YN (
); Other SBI types (
); and International (▵).
