A national outbreak of Salmonella serotype Tennessee infections from contaminated peanut butter: a new food vehicle for salmonellosis in the United States
Autor: | Michael P. Lynch, Katherine Niksich, Cheryl A. Bopp, Elizabeth Villamil, Thai-An Nguyen, Cathy Lord, Carmen F. Clarke, Donald Zink, Mike Hoekstra, Gwen Ewald, Nehal Patel, Anandi N. Sheth |
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Rok vydání: | 2011 |
Předmět: |
Microbiology (medical)
Serotype Adult Male Salmonella Veterinary medicine Peanut butter Adolescent Arachis medicine.disease_cause Disease Outbreaks medicine Food microbiology Humans Salmonella tennessee Child Aged Aged 80 and over business.industry food and beverages Outbreak Infant Contamination Middle Aged United States Salmonella Food Poisoning Electrophoresis Gel Pulsed-Field Infectious Diseases Case-Control Studies Child Preschool Food Microbiology Female Public Health business |
Zdroj: | Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 53(4) |
ISSN: | 1537-6591 |
Popis: | Background Salmonella serotype Tennessee is a rare cause of the estimated 1 million cases of salmonellosis occurring annually in the United States. In January 2007, we began investigating a nationwide increase in Salmonella Tennessee infections. Methods We defined a case as Salmonella Tennessee infection in a patient whose isolate demonstrated 1 of 3 closely related pulsed-field gel electrophoresis patterns and whose illness began during the period 1 August 2006 through 31 July 2007. We conducted a case-control study in 22 states and performed laboratory testing of foods and environmental samples. Results We identified 715 cases in 48 states; 37% of isolates were from urine specimens. Illness was associated with consuming peanut butter more than once a week (matched odds ratio [mOR], 3.5 [95% confidence interval {95% CI}, 1.4-9.9]), consuming Brand X peanut butter (mOR, 12.1 [95% CI, 3.6-66.3]), and consuming Brand Y peanut butter (mOR, 9.1 [95% CI, 1.0-433]). Brands X and Y were produced in 1 plant, which ceased production and recalled products on 14 February 2007. Laboratories isolated outbreak strains of Salmonella Tennessee from 34 Brands X and Y peanut butter jars and 2 plant environmental samples. Conclusions This large, widespread outbreak of salmonellosis is the first linked to peanut butter in the United States; a nationwide recall resulted in outbreak control. Environmental contamination in the peanut butter plant likely caused this outbreak. This outbreak highlights the risk of salmonellosis from heat-processed foods of nonanimal origin previously felt to be low risk for Salmonella contamination. |
Databáze: | OpenAIRE |
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