A dangerous strain of salmonella has spread through the U.S. chicken industry and sickened thousands of people, according to a 2021 ProPublica investigation.
Notes on verification
Confirmed by ProPublica's original investigative reporting and corroborated by multiple independent outlets (GovExec, OPB, Quality Assurance Magazine) citing genomic sequencing data on Salmonella Infantis outbreak. [tier=unverified indep_score=0.3 clusters=3 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- America’s Food Safety System Failed to Stop a Salmonella Epidemic. It’s Still Making People Sick. (seed:politics_and_current_events)
- https://www.govexec.com/oversight/2021/10/americas-food-safety-system-failed-stop-salmonella-epidemic-its-still-making-people-sick/186481/ (corroboration)
- https://www.qualityassurancemag.com/news/propublica-publishes-investigation-into-spread-of-salmonella-infantis/ (corroboration)
- https://www.opb.org/article/2021/11/29/virulent-strain-of-salmonella-spreads-through-us-food-supply/ (corroboration)