跟进：食品药品监管局宣布鸡肉卷相关大肠杆菌疫情结束：50例病例、涉事产品已过保质期，调查仍在继续

食品药品监管局（FDA）10 月 28 日更新其食源性疫情调查表，宣布与含鸡肉的多配料卷相关的大肠杆菌 O157:H7 疫情已经结束、对消费者不再有持续风险；这起编号 1421（农业部编号 2026-04）的疫情共报告 50 例病例，FDA 的疫情调查本身仍在进行。

FDA 表示，调查所指向的卷类产品已经过了保质期、市面上不再有售；涉事产品早在疫情关联被确立之前就已主动撤出市场，当时的发病集中在 8 月的一周之内。正因产品已下架且过期，FDA 称公布更多产品细节也无法再给消费者提供可采取的防范行动。

回顾此线：FDA 9 月 23 日将这起疫情列入调查表时病例为 25 例，10 月中旬升至 50 例；本站 10 月 23 日曾报道，农业部食品安全检验局（FSIS）已确认涉事产品为 Trader Joe's 在部分门店销售的龙蒿鸡肉沙拉卷，该连锁此前在接到 FDA 通知后已在九个州下架该产品。

FDA 的调查表显示，这起疫情的追溯、现场检查与采样都已启动，调查状态仍为进行中，意味着污染来源层面的核查尚未收尾。疫情虽已结束，消费者如出现食源性疾病症状，仍应联系医疗服务提供者与公共卫生官员。调查进展可见食品药品监管局的食源性疫情调查页。

Follow-Up: FDA Says E. coli Outbreak Linked to Chicken Wraps Has Ended; 50 Cases, Investigation Continues

The Food and Drug Administration (FDA) updated its foodborne outbreak investigation table on October 28, announcing that the E. coli O157:H7 outbreak linked to multi-ingredient wraps with chicken has ended and poses no ongoing risk to consumers. The outbreak, reference number 1421 (USDA 2026-04), totaled 50 cases; the FDA's outbreak investigation itself remains active.

The FDA said the wrap identified through the investigation is past shelf life and no longer available for purchase. The implicated wraps were proactively removed from the market before the link to the outbreak was established, and illnesses at the time occurred during one week in August. Because the products were removed from sale and are out of shelf life, the FDA said more detailed product information would not have provided consumers with an action they could take to prevent illness.

The outbreak was first listed on September 23 with 25 cases and rose to 50 by mid-October. As GSM reported on October 23, the USDA's Food Safety and Inspection Service (FSIS) confirmed the products were Tarragon Chicken Salad Wraps sold at certain Trader Joe's stores; the chain had pulled the wraps in nine states after the FDA notified it of a possible issue in September.

The FDA table shows traceback, on-site inspection and sampling have all been initiated and the investigation status remains active, meaning work to pin down the source of contamination is not yet complete. Consumers who develop symptoms of foodborne illness should still contact their healthcare provider and public health officials.

来源：GSM·美国（原文链接）

图片来源：图：大肠杆菌 O157:H7 的彩色扫描电子显微镜图像。图片来源：美国疾控中心公共卫生图像库（公共领域，经 Wikimedia Commons）。 / Photo: Colorized scanning electron micrograph of E. coli O157:H7. Image: CDC Public Health Image Library, public domain (via Wikimedia Commons).

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