Volume 31, Supplement—May 2025
SUPPLEMENT ISSUE
Supplement
Genomic Modeling of an Outbreak of Multidrug-Resistant Shigella sonnei, California, USA, 2023–2024
Figure 4

Figure 4. Distribution curve of the predicted dates of the most recent common ancestor of the Shigella sonnei outbreak isolates, California, USA, 2023–2024. The plot shows the posterior density for the common ancestor times of the Shigella sequences collected in the San Francisco Bay, California, USA, area. For a single introduction, the common ancestor time provides a lower bound on the timing of the introduction into the San Francisco Bay area.
1These first authors contributed equally to this article.
2These senior authors contributed equally to this article.
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