A Quantitative Risk Assessment of Human Salmonellosis from Consumption of Pistachios in the United States

Journal of Food Protection
Sofia M Santillana FarakosJane M Van Doren

Abstract

We developed a quantitative risk assessment model to assess the risk of human nontyphoidal salmonellosis from consumption of pistachios in the United States and to evaluate the impact of Salmonella treatments (1- to 5-log reductions). The exposure model estimating prevalence and contamination levels of Salmonella at consumption included steps in pistachio processing such as transport from grower to huller, removal of the hull through wet abrasion, separation of pistachio floaters (immature, smaller nuts) and sinkers (mature, larger nuts) in a flotation tank, drying, storage, and partitioning. The risks of illness per serving and per year were evaluated by including a Salmonella dose-response model and U.S. consumption data. The spread of Salmonella through float tank water, delay in drying resulting in growth, increased Salmonella levels through pest infestation during storage (pre- and posttreatment), and a simulation of the 2016 U.S. salmonellosis outbreak linked to consumption of pistachios were the modeled atypical situations. The baseline model predicted one case of salmonellosis per 2 million servings (95% CI: one case per 5 million to 800,000 servings) for sinker pistachios and one case per 200,000 servings (95% CI: one ...Continue Reading

References

Nov 1, 1994·International Journal of Food Microbiology·J Baranyi, T A Roberts
Aug 3, 2010·International Journal of Food Microbiology·Régis Pouillot, Marie Laure Delignette-Muller
Sep 10, 2011·Journal of Food Protection·Larry R Beuchat, David A Mann
Jan 16, 2013·Journal of Food Protection·Larry R BeuchatBenno H Ter Kuile
Apr 1, 2014·Journal of Food Protection·Amanda A LathropJames Schnepf
Apr 12, 2016·International Journal of Food Microbiology·Sofia M Santillana FarakosJane Van Doren
Aug 9, 2016·Journal of Food Protection·Linda J HarrisThomas Jones
Aug 17, 2017·Journal of Food Protection·Sofia M Santillana FarakosJane M Van Doren

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Citations

Mar 26, 2019·Journal of Food Protection·Kaitlyn E CasulliDonald W Schaffner
Feb 23, 2020·Journal of Food Protection·Mahta MoussaviLinda J Harris
Dec 27, 2018·Journal of Food Protection·Sofia M Santillana FarakosJane M VAN Doren
Jan 14, 2021·Journal of Food Science·Guodong ZhangThomas S Hammack
Apr 3, 2021·Critical Reviews in Food Science and Nutrition·Nitin Dhowlaghar, Mei-Jun Zhu
May 8, 2021·Comprehensive Reviews in Food Science and Food Safety·Erdogan CeylanHeidy M W den Besten

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