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Listeria monocytogenes infection from foods prepared in a commercial establishment: a case-control study of potential sources of sporadic illness in the United States.
Clin Infect Dis. 2007 Feb 15; 44(4):521-8.CI

Abstract

BACKGROUND

Listeria monocytogenes has been estimated to cause >2500 illnesses and 500 deaths annually in the United States. Efforts to reduce foodborne listeriosis have focused on foods frequently implicated in outbreaks. Potential sources for L. monocytogenes infection not associated with outbreaks remain poorly understood.

METHODS

The Foodborne Diseases Active Surveillance Network conducts surveillance for culture-confirmed listeriosis at clinical laboratories in 9 states. After excluding outbreak-associated cases, we attempted to enroll eligible case patients with L. monocytogenes infection in a case-control study from 2000 through 2003. Control subjects were recruited through health care providers and were matched to case patients by state, age, and immunosuppression status. Data were collected about exposures occurring in the 4 weeks before specimen collection from the case patients.

RESULTS

Of the 249 case patients with L. monocytogenes infection, only 12 (5%) had cases that were associated with outbreaks; 6 other patients were ineligible for other reasons. Of 231 eligible case patients, 169 (73%) were enrolled in the study. We classified 28 case patients as having pregnancy-associated cases. We enrolled 376 control subjects. In multivariable analysis, L. monocytogenes infection was associated with eating melons at a commercial establishment (odds ratio, 2.6; 95% confidence interval, 1.4-5.0) and eating hummus prepared in a commercial establishment (odds ratio, 5.7; 95% confidence interval, 1.7-19.1).

CONCLUSIONS

Most cases of L. monocytogenes infection were not associated with outbreaks. Reducing the burden of foodborne listeriosis may require interventions directed at retail environments and at foods, such as melons and hummus, that are not commonly recognized as high risk. Because of the severity of listeriosis, pregnant women and other persons at risk may wish to avoid eating these newly implicated foods.

Authors+Show Affiliations

Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

17243054

Citation

Varma, Jay K., et al. "Listeria Monocytogenes Infection From Foods Prepared in a Commercial Establishment: a Case-control Study of Potential Sources of Sporadic Illness in the United States." Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America, vol. 44, no. 4, 2007, pp. 521-8.
Varma JK, Samuel MC, Marcus R, et al. Listeria monocytogenes infection from foods prepared in a commercial establishment: a case-control study of potential sources of sporadic illness in the United States. Clin Infect Dis. 2007;44(4):521-8.
Varma, J. K., Samuel, M. C., Marcus, R., Hoekstra, R. M., Medus, C., Segler, S., Anderson, B. J., Jones, T. F., Shiferaw, B., Haubert, N., Megginson, M., McCarthy, P. V., Graves, L., Gilder, T. V., & Angulo, F. J. (2007). Listeria monocytogenes infection from foods prepared in a commercial establishment: a case-control study of potential sources of sporadic illness in the United States. Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America, 44(4), 521-8.
Varma JK, et al. Listeria Monocytogenes Infection From Foods Prepared in a Commercial Establishment: a Case-control Study of Potential Sources of Sporadic Illness in the United States. Clin Infect Dis. 2007 Feb 15;44(4):521-8. PubMed PMID: 17243054.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Listeria monocytogenes infection from foods prepared in a commercial establishment: a case-control study of potential sources of sporadic illness in the United States. AU - Varma,Jay K, AU - Samuel,Michael C, AU - Marcus,Ruthanne, AU - Hoekstra,Robert M, AU - Medus,Carlota, AU - Segler,Suzanne, AU - Anderson,Bridget J, AU - Jones,Timothy F, AU - Shiferaw,Beletshachew, AU - Haubert,Nicole, AU - Megginson,Melanie, AU - McCarthy,Patrick V, AU - Graves,Lewis, AU - Gilder,Thomas Van, AU - Angulo,Frederick J, Y1 - 2007/01/08/ PY - 2006/05/04/received PY - 2006/08/07/accepted PY - 2007/1/24/pubmed PY - 2007/3/1/medline PY - 2007/1/24/entrez SP - 521 EP - 8 JF - Clinical infectious diseases : an official publication of the Infectious Diseases Society of America JO - Clin Infect Dis VL - 44 IS - 4 N2 - BACKGROUND: Listeria monocytogenes has been estimated to cause >2500 illnesses and 500 deaths annually in the United States. Efforts to reduce foodborne listeriosis have focused on foods frequently implicated in outbreaks. Potential sources for L. monocytogenes infection not associated with outbreaks remain poorly understood. METHODS: The Foodborne Diseases Active Surveillance Network conducts surveillance for culture-confirmed listeriosis at clinical laboratories in 9 states. After excluding outbreak-associated cases, we attempted to enroll eligible case patients with L. monocytogenes infection in a case-control study from 2000 through 2003. Control subjects were recruited through health care providers and were matched to case patients by state, age, and immunosuppression status. Data were collected about exposures occurring in the 4 weeks before specimen collection from the case patients. RESULTS: Of the 249 case patients with L. monocytogenes infection, only 12 (5%) had cases that were associated with outbreaks; 6 other patients were ineligible for other reasons. Of 231 eligible case patients, 169 (73%) were enrolled in the study. We classified 28 case patients as having pregnancy-associated cases. We enrolled 376 control subjects. In multivariable analysis, L. monocytogenes infection was associated with eating melons at a commercial establishment (odds ratio, 2.6; 95% confidence interval, 1.4-5.0) and eating hummus prepared in a commercial establishment (odds ratio, 5.7; 95% confidence interval, 1.7-19.1). CONCLUSIONS: Most cases of L. monocytogenes infection were not associated with outbreaks. Reducing the burden of foodborne listeriosis may require interventions directed at retail environments and at foods, such as melons and hummus, that are not commonly recognized as high risk. Because of the severity of listeriosis, pregnant women and other persons at risk may wish to avoid eating these newly implicated foods. SN - 1537-6591 UR - https://www.unboundmedicine.com/medline/citation/17243054/Listeria_monocytogenes_infection_from_foods_prepared_in_a_commercial_establishment:_a_case_control_study_of_potential_sources_of_sporadic_illness_in_the_United_States_ L2 - https://academic.oup.com/cid/article-lookup/doi/10.1086/509920 DB - PRIME DP - Unbound Medicine ER -