跟进：西兰花芽沙门氏菌疫情宣告结束：感染增至34人，FDA确认进口种子批次为源头
美国食品药品管理局（FDA）11月4日更新多州沙门氏菌疫情调查：与受污染种子批次相关的西兰花芽与微型菜苗疫情宣告结束，FDA的调查已经完结，疾控中心（CDC）同步宣布疫情结束。
本轮更新的最终数字为：六个州共报告34人感染疫情菌株 Salmonella Bovismorbificans，较本站10月7日首篇报道时的32人增加2人；发病日期为2026年7月7日至9月11日，其中3人住院、无人死亡。在接受访谈的30人中，29人（97%）报告吃过芽苗或微型菜苗，25人明确吃过西兰花芽。
源头认定方面，华盛顿州与蒙大拿州卫生官员采集的 Evergreen Fresh Sprouts 品牌西兰花芽样本、以及 FDA 在国内种子供应商处采集的种子样本，均检出沙门氏菌且经全基因组测序与致病菌株一致。溯源与实验室证据共同指向同一批自新西兰进口的西兰花种子（供应商批次 W4105）为可能的污染源头。
涉事产品已全部召回：Evergreen Fresh Sprouts 的西兰花芽已过保质期、不再销售；Gardeners Basics、Eden Brothers、Home Grown 等品牌的西兰花催芽种子因保质期较长仍可能留存在消费者家中，FDA提醒消费者、餐厅与零售商不要使用被召回的种子，并对接触过相关产品的表面与容器做清洁消毒。FDA表示将继续与供应链协作，如再有下游召回将更新通告。（来源：美国食品药品管理局）
Follow-up: Broccoli Sprout Salmonella Outbreak Declared Over as Cases Reach 34 and FDA Confirms Imported Seed Lot Source
The U.S. Food and Drug Administration (FDA) updated its multistate Salmonella outbreak investigation on November 4: the outbreak linked to broccoli sprouts and microgreens grown from a contaminated seed lot is over, the FDA's investigation is complete, and the Centers for Disease Control and Prevention (CDC) has declared the outbreak over.
The final case count is 34 people infected with the outbreak strain of Salmonella Bovismorbificans across six states, up from the 32 reported when GSM first covered the outbreak on October 7. Illnesses started between July 7 and September 11, 2026; three people were hospitalized and no deaths were reported. Of 30 people interviewed, 29 (97%) reported eating sprouts or microgreens, and 25 reported specifically eating broccoli sprouts.
On the source, Evergreen Fresh Sprouts-brand broccoli sprout samples collected by Washington and Montana state health officials, and broccoli seed samples the FDA collected from the domestic seed supplier, tested positive for Salmonella and matched the outbreak strain by whole genome sequencing. Traceback and laboratory evidence point to a common broccoli seed lot imported from New Zealand (supplier lot W4105) as the likely source of contamination.
All affected products have been recalled: the Evergreen Fresh Sprouts sprouts are past expiration and no longer for sale, while recalled broccoli sprouting seeds sold by Gardeners Basics, Eden Brothers, Home Grown and others have a long shelf life and may still be in consumers' homes. The FDA advises consumers, restaurants and retailers not to use the recalled seeds and to clean and sanitize surfaces and containers that touched them, and says it will update its advisory if additional downstream recalls are initiated. (Source: U.S. Food and Drug Administration)
来源：美国食品药品管理局
发布：GSM·美国（发布链接）
图片来源：图：西兰花芽实景（资料图）。照片：Julie Gibbons，CC BY 2.0，经 Wikimedia Commons。 / Photo: Broccoli sprouts (file photo). Photo by Julie Gibbons, CC BY 2.0, via Wikimedia Commons.
GSM Global · 本篇英文版 English edition of this story
- 2026-10-07 08:35FDA确认种子批次W4105为西兰花芽沙门氏菌疫情源头：六州32人感染，家庭催芽种子再现召回
- 2026-11-04 17:40跟进：西兰花芽沙门氏菌疫情宣告结束：感染增至34人，FDA确认进口种子批次为源头本篇
