The abstract is read at the publisher; the summary is JClub's.
Recurrent, highly clonal Salmonella subpopulations persist across multiple watersheds and consecutive years in central Chile’s agricultural surface waters, including lineages linked to human infections.
- Why it matters: Agricultural irrigation water is a key route for Salmonella reaching produce, yet the persistence and spread of specific environmental lineages over time remain unclear.
- What they did: From 2019–2024, 2,690 water samples from central Chile were collected with modified Moore swabs; whole-genome sequencing was done for 1–10 isolates per sample, yielding 1,034 non-clonal genomes analyzed phylogenomically.
- The result: The analyses identified recurrent subpopulations repeatedly detected across watersheds and years, including multidrug-resistant strains, supporting the idea that these waters can act as reservoirs and dissemination routes.
The findingWhy it mattersWhat they didThe result
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