PLOS Biology
Open-access peer-reviewed biology journal; published the 2026 Emory H5N1 dairy aerosol study.
Last refreshed: 7 May 2026 · Appears in 1 active topic
Why does a PLOS Biology study on dairy aerosols matter for how farm workers are told to protect themselves?
Timeline for PLOS Biology
Published Emory-led study detecting H5N1 in milking-parlour aerosols, wastewater, and cow breath
Pandemics and Biosecurity: Emory aerosol study reframes dairy PPE- What did the PLOS Biology H5N1 dairy study find?
- A PLOS Biology study by Emory University researchers found H5N1 in submicron aerosol particles in milking-parlour air at 14 California dairy farms, in farm wastewater, and in cows' exhaled breath. Cows shed virus before showing clinical signs.Source: PLOS Biology / Emory University
- Is PLOS Biology a reputable journal?
- PLOS Biology is a peer-reviewed, open-access journal published by the non-profit Public Library of Science since 2003. It has an impact factor in the 8 to 9 range and is considered a leading journal in the biological sciences.
- Why does the Emory aerosol study matter for dairy workers?
- The study found H5N1 in milking-parlour air as aerosol particles, indicating an exposure route that current CDC guidance — focused on contact with milk and secretions — does not address with respiratory protection.Source: PLOS Biology
Background
PLOS Biology is an open-access, peer-reviewed journal published by the Public Library of Science (PLOS), a non-profit publisher founded in 2000. Launched in 2003, PLOS Biology covers all aspects of biological science and is one of the flagship open-access journals in the life sciences. Its open-access model means all published research is freely available without paywalls, making it particularly influential for public health communications where wide access matters. The journal has an impact factor in the range of 8 to 9 and publishes original research articles, reviews, and commentary across molecular biology, ecology, evolutionary biology, and related fields. PLOS is based in San Francisco, California.
PLOS Biology published the study by Emory University researchers that detected H5N1 in submicron aerosol particles in milking-parlour air at 14 California dairy farms, in farm wastewater, and in the exhaled breath of cows . The study's findings — cows shedding virus into milk tanks before showing clinical signs, and virus present in aerosol form rather than only in contact-route secretions — have direct implications for current CDC dairy-worker PPE guidance, which addresses contact transmission but not respiratory aerosol exposure. The journal's open-access publication model means the study is freely available to regulators, employers, and workers alike, rather than sitting behind a subscription paywall.
