Volume 26, Number 7—July 2020
Dispatch
Linking Epidemiology and Whole-Genome Sequencing to Investigate Salmonella Outbreak, Massachusetts, USA, 2018
Eric L. Vaughn1, Quynh T. Vo1
, Johanna Vostok, Tracy Stiles, Andrew Lang, Catherine M. Brown, R. Monina Klevens, and Lawrence Madoff
, Johanna Vostok, Tracy Stiles, Andrew Lang, Catherine M. Brown, R. Monina Klevens, and Lawrence Madoff
Figure
Figure. Phylogenetic tree for Salmonella enterica serotype Enteritidis isolates from outbreak in Massachusetts, USA, 2018. The colored boxes on the left indicate 9 separate subclusters for the entire 84-isolate cluster, with confirmation of allele differences coming from PulseNet (https://www.cdc.gov/pulsenet/index.html). Eight subclusters yielded no epidemiologic data, resulting in the closure of those clusters. The ninth subcluster, in the green box (right), contains the isolates associated with the restaurant cluster. Boldface indicates isolates from persons who ate at the restaurant; the star indicates the isolate from the food handler implicated in the outbreak.
1These first authors contributed equally to this article.
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