2020-02-05Zeitschriftenartikel DOI: 10.25646/6716
Disentangling outbreaks using whole-genome sequencing: concurrent multistate outbreaks of Salmonella Kottbus in Germany, 2017
von Laer, Anja
Gillesberg Lassen, Sofie
In June 2017, an outbreak of Salmonella Kottbus infection was suspected in Germany. We investigated the outbreak with whole-genome sequencing (WGS) and a case–control study. Forty-six isolates from 69 cases were subtyped. Three WGS clusters were identified: cluster 1 (n = 36), cluster 2 (n = 5) and cluster 3 (n = 3). Compared to controls, cluster 1 cases more frequently consumed raw smoked ham (odds ratio (OR) 10, 95% confidence interval (CI) 1.2–88) bought at supermarket chain X (OR 36, 95% CI 4–356; 9/10 consumed ham Y). All four cluster 2 cases interviewed had consumed quail eggs. Timely WGS was invaluable in distinguishing concurrent outbreaks of a rare Salmonella serotype.
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