Volume 26, Number 3—March 2020
Research
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
Table
Genetic clusters of Campylobacter isolates with matches between clinical isolates and food/animal isolates, Denmark, 2015–2017
| Possible source | No. clusters with clinical isolates (1, 2–4, >5 isolates) | Total no. clinical isolates in clusters | Total no. cluster isolates |
|---|---|---|---|
| Domestic cattle |
8 (5, 2, 1) |
16 |
24 |
| Imported chicken meat |
10 (5, 5, 0) |
18 |
30 |
| Domestic chicken/broiler | 55 (24, 16, 15) | 192 | 322 |
| Chicken meat* | 13 (4, 4, 5) | 69 | 89 |
| Broiler | 21 (14, 6, 1) | 37 | 62 |
| Chicken meat and/or broiler |
21 (6, 6, 9) |
86 |
171 |
| Dog (domestic) |
1 (0, 1, 0) |
2 |
3 |
| Chicken (imported) + turkey (imported) + broiler (domestic) |
1 (0, 0, 1) |
5 |
10 |
| Total | 75 (34, 24, 17) | 233 | 389 |
*One cluster included a C. jejuni isolate from a dog.
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