Scientific Publications by FDA Staff

MMWR Morb Mortal Wkly Rep 2016 Aug 26;65(33):879-81

Outbreak of listeriosis associated with consumption of packaged salad--United States and Canada, 2015-2016.

Self JL, Conrad A, Stroika S, Jackson A, Burnworth L, Beal J, Wellman A, Jackson KA, Bidol S, Gerhardt T, Hamel M, Franklin K, Kopko C, Kirsch P, Wise ME, Basler C

In September 2015, PulseNet, the national molecular subtyping network for foodborne disease surveillance, identified a cluster of Listeria monocytogenes (Listeria) clinical isolates indistinguishable by two-enzyme pulsed-field gel electrophoresis (PFGE) pattern combination and highly related by whole-genome multilocus sequence typing (wgMLST). A case was defined as isolation of Listeria with the outbreak PFGE pattern and highly related by wgMLST with an isolation date on or after July 5, 2015, the isolate date of the earliest case in this cluster.