Critical Review Of Salmonella Study

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Running head: CRITICAL REVIEW OF SALMONELLA STUDY Critical Review of Salmonella Study Pete Peterson Notre Dame University Introduction Following a multi-state outbreak of Salmonella S. Saintpaul in New South Wales (NSW), Victoria and the Australian Capital Territory (ACT) in October 2006, a case-control study was conducted to investigate the outbreak (Munnoch et al., 2009). The investigation included 36 cases with the S. Saintpaul strain detected by multiple locus variable-number tandem repeat analysis (MLVA) and 106 controls (Munnoch et al., 2009). Consumption of contaminated cantaloupe was found as the most likely cause of the Salmonellosis illness, something which had never been previously found in Australian Salmonella outbreak investigations (Munnoch et al., 2009). The investigators used a 7-day retrospective hypothesis generating questionnaire, an interview with matched controls and identical questions for cases and controls, univariate analysis, microbiological examination, trace-back, sampling and environmental investigation in their study (Munnoch et al., 2009). The researchers concluded that cantaloupe was the main source of Salmonella contamination and therefore concluded that regular and improved Australian processing practices regarding cantaloupe harvesting and production were necessary (Munnoch et al., 2009). This paper reviews the report by Munnoch et al., (2009) that described the multi-state investigation of the S. Saintpaul outbreak in October 2006. Specifically, the paper questions the quality of the study design, objectives, parameters, methods, analysis, potential sources of bias and confounding reported. Furthermore, it examines the interpretation and application of the study results. Study objectives and design In Australia, foodborne outbreaks with the S. Saintpaul Salmonella serotype had been formerly linked

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