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Figure 2 | Genome Biology

Figure 2

From: Microevolutionary analysis of Clostridium difficile genomes to investigate transmission

Figure 2

Conceptual representation of how the TMRCA relates to transmission. Two patients A and B are shown, and a transmission event happened from A to B as indicated by a red arrow. Within each patient, a colonizing population evolves between the time of infection and the time when the patient becomes symptomatic, at which point a single strain is isolated, represented by a red dot. The most recent common ancestor of the two isolates from A and B is shown as a blue dot.

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