To address an endemicity of Salmonella Enteritidis (SE) infection, a food borne disease, in United States of America (USA), different food vehicles associated with SE outbreaks were examined in this study. Data of all SE outbreaks reported to Centers for Disease Control and Prevention (CDC) from 1990 to 2015 was retrieved from CDC website. The data included following information about each outbreak: year, month, state, implicated food vehicles, location, and number of SE cases. It was found that eggs-based dishes 273 (24%) were the highest reported followed by other implicated food items; meat 130 (11%), vegetables 96 (8%), chicken items 95 (8%), dairy products 55 (5%), and bakery items 8 (1%) in the country. Relative occurrence of food vehicles compared to eggs-based dishes implicated in SE outbreaks was examined by using negative binomial model which showed significant contribution of other food items in causing SE outbreaks in the country such as meat (exp(β)=0.51, 95% CI 0.37, 0.69), chicken (exp(β)=0.42, 95% CI 0.30, 0.58), vegetables (exp(β)=0.41, 95% CI 0.29, 0.55), and dairy items (exp(β)=0.27, 95% CI 0.18, 0.40). In addition, different trends of SE outbreaks were analyzed based on available dataset, and newly created categorical variables such as census region, HHS regions and seasons. The study enhanced the existed knowledge of other implicated food items besides eggs in persistent occurrence of SE food borne disease in the USA.
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