Two Listeria monocytogenes Pseudo-outbreaks Caused by Contaminated Laboratory Culture Media

Almea Matanock; Lee S Katz; Kelly A Jackson; Zuzana Kucerova; Amanda R Conrad; William A Glover; Von Nguyen; Marika C Mohr; Nicola Marsden-Haug; Deborah Thompson; John R Dunn; Steven Stroika; Beth Melius; Cheryl Tarr; Stephen E Dietrich; Annie S Kao; Laura Kornstein; Zhen Li; Azarnoush Maroufi; Ellyn P Marder; Rebecca Meyer; Ailyn C Perez-Osorio; Vasudha Reddy; Roshan Reporter; Heather Carleton; Samantha Tweeten; HaeNa Waechter; Lisa M Yee; Matthew E Wise; Kim Davis; Brendan R Jackson

doi:10.1128/JCM.02035-15

Two Listeria monocytogenes Pseudo-outbreaks Caused by Contaminated Laboratory Culture Media

J Clin Microbiol. 2016 Mar;54(3):768-70. doi: 10.1128/JCM.02035-15. Epub 2015 Dec 23.

Authors

Almea Matanock¹, Lee S Katz², Kelly A Jackson², Zuzana Kucerova², Amanda R Conrad³, William A Glover⁴, Von Nguyen², Marika C Mohr⁵, Nicola Marsden-Haug⁴, Deborah Thompson⁶, John R Dunn⁷, Steven Stroika², Beth Melius⁴, Cheryl Tarr², Stephen E Dietrich⁸, Annie S Kao⁹, Laura Kornstein¹⁰, Zhen Li⁴, Azarnoush Maroufi⁹, Ellyn P Marder⁷, Rebecca Meyer¹¹, Ailyn C Perez-Osorio⁴, Vasudha Reddy¹⁰, Roshan Reporter¹², Heather Carleton², Samantha Tweeten⁹, HaeNa Waechter¹⁰, Lisa M Yee⁹, Matthew E Wise², Kim Davis¹³, Brendan R Jackson²

Affiliations

¹ United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA Epidemic Intelligence Service, Atlanta, Georgia, USA xdf2@cdc.gov.
² United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
³ United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA Atlanta Research and Education Foundation, Decatur, Georgia, USA.
⁴ Washington State Department of Health, Shoreline, Washington, USA.
⁵ Ohio Department of Health, Columbus, Ohio, USA.
⁶ New Mexico Department of Health, Santa Fe, New Mexico, USA.
⁷ Tennessee Department of Health, Nashville, Tennessee, USA.
⁸ Michigan Department of Health and Human Services, Lansing, Michigan, USA.
⁹ County of San Diego Health and Human Services Agency, San Diego, California, USA.
¹⁰ New York City Department of Health and Mental Hygiene, New York, New York, USA.
¹¹ Georgia Department of Public Health, Atlanta, Georgia, USA.
¹² Los Angeles County Department of Public Health, Los Angeles, California, USA.
¹³ United States Food and Drug Administration, Silver Spring, Maryland, USA.

Abstract

Listeriosis is a serious foodborne infection that disproportionately affects elderly adults, pregnant women, newborns, and immunocompromised individuals. Diagnosis is made by culturing Listeria monocytogenes from sterile body fluids or from products of conception. This report describes the investigations of two listeriosis pseudo-outbreaks caused by contaminated laboratory media made from sheep blood.

MeSH terms

Culture Media
Disease Outbreaks*
Genome, Bacterial
Humans
Laboratories
Listeria monocytogenes / classification
Listeria monocytogenes / genetics*
Listeria monocytogenes / isolation & purification
Listeriosis / epidemiology*
Listeriosis / transmission*
Multilocus Sequence Typing
Phylogeny
United States / epidemiology

Substances

Culture Media