[Video] How CDC Investigators Trace the Source of Foodborne Outbreaks, Step by Step
GSM Official released this CDC video on September 2, 2026, explaining how foodborne-illness investigators trace the source of an outbreak step by step. With multiple outbreaks each year in the U.S., the CDC and state health departments identify contaminated foods through case interviews, laboratory matching and supply-chain traceback, leading to recalls.
This item is built around the video itself and embeds it in full.
(Source: CDC)
Source: CDC
Published by GSM · USA (original Chinese edition)
Photo: 图：GSM Official 官方频道视频《揭秘食源性疾病调查：CDC如何一步步追查食品源头》画面（YouTube 官方缩略图）。
