Whole-Genome Sequencing to Detect Numerous Campylobacter jejuni Outbreaks and Match Patient Isolates to Sources, Denmark, 2015–2017
Katrine G. Joensen, Kristoffer Kiil, Mette R. Gantzhorn, Birgitte Nauerby, Jørgen Engberg, Hanne M. Holt, Hans L. Nielsen, Andreas M. Petersen, Katrin G. Kuhn, Gudrun Sandø, Steen Ethelberg, and Eva M. Nielsen
Author affiliations: Statens Serum Institut, Copenhagen, Denmark (K.G. Joensen, K. Kiil, K.G. Kuhn, S. Ethelberg, E.M. Nielsen); Danish Veterinary and Food Administration, Copenhagen (M.R. Gantzhorn, B. Nauerby, G. Sandø); Slagelse Hospital, Slagelse, Denmark (J. Engberg); Odense University Hospital, Odense, Denmark (H.M. Holt); Aalborg University Hospital, Aalborg, Denmark (H.L. Nielsen); Aalborg University, Aalborg (H.L. Nielsen); Hvidovre University Hospital, Hvidovre, Denmark (A.M. Petersen)
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Figure 5
Figure 5. Distribution of large cluster isolates of Campylobacter jejuni from Denmark, over time. The 22 large genetic clusters (>5 clinical isolates) are listed vertically, and the cluster isolates are displayed over time (in days) horizontally. Each cluster is centered at the median date of the cluster isolates (t = 0). Each dot represents an isolate at a certain time, and colors indicate the origin of the isolate. The 6 clusters ST257#6, ST48#5, ST50#9, ST257#4, ST5#1, and ST51#1+ST21#2 are also illustrated in Figure 3. (a) indicates the 2 clusters representing the multistrain outbreak from the fifth CML; (b) indicates the 2 clusters linked by the same patient having an isolate part of each cluster.
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