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Evolutionary model for the Listeria monocytogenes isolates recovered during a nation‐wide food‐borne outbreak. Predicted mutational events are indicated on the diagonal lines, genotypes of the resulting lineages are denoted within circles, and isolates representative of those lineages are indicated to the right of solid dots. Sequenced isolates are denoted with bold text. Reprinted from Gilmour and colleagues (2010).
