✉news HealthPandemics first seen 4 d ago, last 3 d ago, peak #15
Genome Sequencing Traces Foodborne Outbreaks Without Positive Food Samples
Original: No Positive Food Sample? Whole Genome Sequencing and Traceback Still Tell Us Who Got Sick and Why
Food safety attorney Bill Marler explains that investigators can identify the source of foodborne illness outbreaks even when testing finds no contaminated food sample. Whole genome sequencing of bacteria from patients, combined with traceback investigations of supply chains, links sick people to the implicated product. He argues the absence of a positive food sample does not stop officials from determining who got sick and why.
Why now: The piece highlights a common misunderstanding during outbreak announcements when no contaminated food is found, prompting discussion of how modern pathogen tracking works.
Bill MarlerMarler Blogwhole genome sequencingCDC
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Evidence
- No Positive Food Sample? Whole Genome Sequencing and Traceback Still Tell Us Who Got Sick and Why · Marler Blog
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