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Volume 25, Number 8—August 2019

Multistate Outbreak of Listeriosis Associated with Packaged Leafy Green Salads, United States and Canada, 2015–2016

Julie L. SelfComments to Author , Amanda Conrad, Steven Stroika, Alikeh Jackson, Laura Whitlock, Kelly A. Jackson, Jennifer Beal, Allison Wellman, Marianne K. Fatica, Sally Bidol, Paula Pennell Huth, Meghan Hamel, Kristyn Franklin, Lorelee Tschetter, Christine Kopko, Penelope Kirsch, Matthew E. Wise, and Colin Basler
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (J.L. Self, A. Conrad, S. Stroika, L. Whitlock, K.A. Jackson, M.E. Wise, C. Basler); US Food and Drug Administration, College Park, Maryland, USA (A. Jackson, J. Beal, A. Wellman, M.K. Fatica); Michigan Department of Health and Human Services, Lansing, Michigan, USA (S. Bidol); New York State Department of Health, New York, New York, USA (P. Pennell Huth); Public Health Agency of Canada, Ottawa, Ontario, Canada (M. Hamel, K. Franklin, L. Tschetter); Canadian Food Inspection Agency, Ottawa (C. Kopko, P. Kirsch)

Main Article

Table 1

Characteristics of 19 patients with outbreak-related listeriosis associated with packaged leafy green salads, United States, July 5, 2015–January 31, 2016*

Characteristic Value
Age, y, median (range) 64 (3–83)
Female sex 14 (74)
Pregnancy-associated cases† 1 (5)
Hospitalization 19 (100)
1 (5)
Listeria monocytogenes culture site
Blood 14 (74)
Cerebrospinal fluid 3 (16)
Placenta 1 (5)
Hip 1 (5)

*Values are no. (%) unless otherwise indicated.
†A pregnancy-associated case was defined as an illness in a pregnant woman or infant <28 d of age. Cases involving mother–infant pairs are counted as a single case.

Main Article

Page created: July 16, 2019
Page updated: July 16, 2019
Page reviewed: July 16, 2019
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.