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Added value of a household-level study during an outbreak investigation of Salmonella serotype Saintpaul infections, New Mexico 2008

  • A. L. BOORE (a1) (a2), J. JUNGK (a3), E. T. RUSSO (a1) (a2), J. T. REDD (a4), F. J. ANGULO (a2), I. T. WILLIAMS (a2), J. E. CHEEK (a4) and L. H. GOULD (a2)...

Summary

In 2008, nationwide investigations of a Salmonella serotype Saintpaul outbreak led first to consumer warnings for Roma and red round tomatoes, then later for jalapeño and serrano peppers. In New Mexico, where there were a large number of cases but no restaurant-based clusters, the NM Department of Health and the Indian Health Service participated with CDC in individual-level and household-level case-control studies of infections in New Mexico and the Navajo Nation. No food item was associated in the individual-level study. In the household-level study, households with an ill member were more likely to have had jalapeño peppers present during the exposure period and to have reported ever having serrano peppers in the household. This report illustrates the complexity of this investigation, the limitations of traditional individual-level case-control studies when vehicles of infection are ingredients or commonly eaten with other foods, and the added value of a household-level study.

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Copyright

Corresponding author

*Author for correspondence: A. L. Boore, PhD, MPH, Centers for Disease Control and Prevention, 1600 Clifton Rd, NE, MS E-04, Atlanta, GA 30329, USA. (Email: amyboore@gmail.comoraboore@cdc.gov)

References

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1.Ayers, LT, et al. Surveillance for foodborne disease outbreaks – United States, 2006. Morbidity and Mortality Weekly Report 2009; 58: 609615.
2.CDC. Salmonella surveillance: annual summary, 2006. Centers for Disease Control and Prevention, 2008.
3.Swaminathan, B, et al. PulseNet: the molecular subtyping network for foodborne bacterial disease surveillance, United States. Emerging Infectious Diseases 2001; 7: 382389.
4.CDC. Outbreak of Salmonella serotype Saintpaul infections associated with multiple raw produce items – United States, 2008. Morbidity and Mortality Weekly Report 2008; 57: 929934.
5.Barton, Behravesh C, et al. 2008 outbreak of Salmonella Saintpaul infections associated with raw produce. New England Journal of Medicine 2011; 364: 918927.
6.Klontz, KC, et al. Analysis of tomato and jalapeno and Serrano pepper imports into the United States from Mexico before and during a national outbreak of Salmonella serotype Saintpaul infections in 2008. Journal of Food Protection 2010; 73: 19671974.
7.Mody, RK, et al. National outbreak of Salmonella serotype saintpaul infections: importance of Texas restaurant investigations in implicating jalapeno peppers. PLoS ONE 2011; 6: e16579.
8.Nutt, JD, et al. Growth kinetics response of a Salmonella typhimurium poultry marker strain to fresh produce extracts. Bioresource Technology 2003; 89: 313316.
9.Liao, CH, Cooke, PH. Response to trisodium phosphate treatment of Salmonella Chester attached to fresh-cut green pepper slices. Canadian Journal of Microbiology 2001; 47: 2532.

Keywords

Added value of a household-level study during an outbreak investigation of Salmonella serotype Saintpaul infections, New Mexico 2008

  • A. L. BOORE (a1) (a2), J. JUNGK (a3), E. T. RUSSO (a1) (a2), J. T. REDD (a4), F. J. ANGULO (a2), I. T. WILLIAMS (a2), J. E. CHEEK (a4) and L. H. GOULD (a2)...

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