Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Oregon Public Health Division, Portland, OR, USA.
Epidemiol Infect. 2018 Oct 8;147:e20. doi: 10.1017/S0950268818002716.
A cluster of Salmonella Paratyphi B variant L(+) tartrate(+) infections with indistinguishable pulsed-field gel electrophoresis patterns was detected in October 2015. Interviews initially identified nut butters, kale, kombucha, chia seeds and nutrition bars as common exposures. Epidemiologic, environmental and traceback investigations were conducted. Thirteen ill people infected with the outbreak strain were identified in 10 states with illness onset during 18 July-22 November 2015. Eight of 10 (80%) ill people reported eating Brand A raw sprouted nut butters. Brand A conducted a voluntary recall. Raw sprouted nut butters are a novel outbreak vehicle, though contaminated raw nuts, nut butters and sprouted seeds have all caused outbreaks previously. Firms producing raw sprouted products, including nut butters, should consider a kill step to reduce the risk of contamination. People at greater risk for foodborne illness may wish to consider avoiding raw products containing raw sprouted ingredients.
2015 年 10 月，检测到一组志贺氏副伤寒 B 变种 L(+)酒石酸盐(+)具有相同脉冲场凝胶电泳模式的感染。最初的访谈确定坚果黄油、羽衣甘蓝、康普茶、奇亚籽和营养棒是常见的暴露源。进行了流行病学、环境和追溯调查。在 10 个州发现了 13 名感染爆发菌株的患病者，发病时间为 2015 年 7 月 18 日至 11 月 22 日。10 名患病者中有 8 名（80%）报告食用了 A 牌生发芽坚果黄油。A 牌进行了自愿召回。生发芽坚果黄油是一种新型的爆发载体，尽管之前曾有受污染的生坚果、坚果黄油和发芽种子导致爆发的情况。生产生发芽产品（包括坚果黄油）的公司应考虑采取杀灭步骤，以降低污染风险。那些更容易感染食源性疾病的人可能希望考虑避免含有生发芽成分的生产品。
