ArticlePLoS biology2026
Surveillance on California dairy farms reveals multiple possible sources of H5N1 influenza virus transmission.
Article in PLoS biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed.
- Mapping Reported Modes of Transmission of Highly Pathogenic Avian Influenza A (H5N1) to Humans: A Scoping Review.One health (Amsterdam, Netherlands) · 2026Review
- A longitudinal study of influenza A viral detection in bulk tank and pen-level milk collected from dairy farms in California affected by highly pathogenic avian influenza H5N1.Journal of dairy science · 2026Article
- Characterizing fecal bioaerosols in dairy barns using microbial source tracking markers and bovine enteric viruses.Microbiology spectrum · 2026Article
- Distinct influenza interfaces in cattle: repeated spillovers of highly pathogenic avian influenza A(H5N1) from wild birds and enzootic circulation of influenza D virus.Frontiers in cellular and infection microbiology · 2026Review
- Immunological and virological questions for H5N1 pandemic emergence.ImmunoHorizons · 2025Review
- Risk of infection of dairy cattle in the EU with highly pathogenic avian influenza virus affecting dairy cows in the United States of America (H5N1, Eurasian lineage goose/Guangdong clade 2.3.4.4b. genotype B3.13).EFSA journal. European Food Safety Authority · 2025Article
- Avian influenza overview June-September 2025.EFSA journal. European Food Safety Authority · 2025Article
- Influenza infection of the mammary gland.Journal of virology · 2025Review
Corrections and comments
- Update of
Authors and funding
27 authors.
Funding
Abstract
Transmission routes of highly pathogenic H5N1 between cows or to humans remain unclear due to limited data from affected dairy farms. We performed air, farm wastewater, and milk sampling on 14 H5N1-positive dairy farms across two different California regions. Infectious virus was detected in the air in milking parlors and in wastewater streams, while viral RNA was found in exhaled breath of cows. Sequence analysis of infectious H5N1 virus from air and wastewater samples on one farm revealed viral variants relevant for potential human susceptibility. Longitudinal analysis of milk from the individual quarters of cows revealed a high prevalence of subclinical H5N1-positive cows. Additionally, a heterogeneous distribution of infected quarters that maintained a consistent pattern over time was observed, inconsistent with shared milking equipment serving as the sole transmission mode. The presence of subclinically infected cows was further supported by detection of antibodies in the milk of animals that exhibited no clinical signs during the H5N1 outbreak on one farm. Our data highlight additional sources and potential modes of H5N1 transmission on dairy farms.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.