Increased Multidrug-Resistant Salmonella enterica I Serotype 4,,12:i:- Infections Associated with Pork, United States, 2009–2018
Ian D. Plumb
, Allison C. Brown, Erin K. Stokes, Jessica C. Chen, Heather Carleton, Beth Tolar, Preethi Sundararaman, Amy Saupe, Daniel C. Payne, Hazel J. Shah, Jason P. Folster, and Cindy R. Friedman
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (I.D. Plumb, A.C. Brown, E.K. Stokes, J.C. Chen, H. Carleton, B. Tolar, P. Sundararaman, D.C. Payne, H.J. Shah, J.P. Folster, C.R. Friedman); Minnesota Department of Health, St. Paul, Minnesota, USA (A. Saupe)
Figure. Clinical multidrug-resistant Salmonella enterica I serotype 4,,12:i:- in a study of infections associated with pork, United States, 2009–2018. Isolates were identified by whether PFGE pattern was linked to the multidrug resistant cgMLST clade. Among 3,007 sequenced clinical PulseNet isolates during 2015–2018 that had PFGE information, 69% (n = 2,070) belonged to a cgMLST clade associated with multidrug resistance containing 275 PFGE patterns; those patterns also were noted in 0.8% (7/937) of isolates outside the clade. cgMLST, core genome multilocus sequence type; PFGE, pulse-field gel electrophoresis.
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