As many unanswered questions remain about the recent outbreaks of High-Path Avian Flu (HPAI) H5N1 in dairy cattle, researchers are looking at many possible options on how the virus is being transmitted — including wastewater testing.
According to the pre-published results of a wastewater study conducted in Texas by researchers at Baylor University, wastewater from 10 cities across the state was tested. Of those samples, nine tested positive for HPAI.
The specific city names were not included in the study (researchers said these cities’ identities are masked at the request of local public health officials and water utilities), but the geographic spread encompasses areas across the state. In those places, 23 total samples were collected and 19 tested positive. A least one positive sample was collected from nine of the 10 cities where samples were collected.
Here is the researcher’s conclusion:
In conclusion, we report the widespread detection of Influenza A H5N1 virus in wastewater from nine U.S. cities during the spring of 2024. Although the exact cause of the signal is currently unknown, lack of clinical burden along with genomic information suggests avian or bovine origin. Given the now widespread presence of the virus in dairy cows, the concerning findings that unpasteurized milk may contain live virus, and that these two recent factors will increase the number of viral interactions with our species, wastewater monitoring should be readily considered as a sentinel surveillance tool that augments and accelerates our detection of evolutionary adaptations of significant concern.
Virome Sequencing Identifies H5N1 Avian Influenza in Wastewater from Nine Cities
Michael J. Tisza, et. al.
Read the full pre-published study:
NOTE: This article is a preprint and has not been certified by peer review [what does this mean?]. It reports new medical research that has yet to be evaluated and so should not be used to guide clinical practice.
Winter weather will challenge livestock producers working to rebuild their herds despite harsh conditions.
November 12, 2025 01:20 PM
·
Enforceable origin labels could create clearer premiums for U.S. cattle and address concerns some producers have had with competition from foreign imported beef.
November 12, 2025 12:39 PM
·
Rural businesses report softer sales, tougher hiring, and restrained investment — a backdrop that can pinch farm support capacity even if posted prices cool.
November 12, 2025 12:22 PM
·
Friday’s release will be the first WASDE report in about two months, and early estimates indicate a corn surplus is still on the way.
November 12, 2025 12:16 PM
·
The National Milk Producers Federation (NMPF) says recent wins in markets like Malaysia and Cambodia help farmers focus on production rather than trade barriers.
November 11, 2025 03:50 PM
·
Pasture, Rangeland and Forage (PRF) interval selection—not just participation—drives protection levels as rainfall patterns become less predictable across the South.
November 11, 2025 11:06 AM
·
If the House concurs and the President signs, USDA services and farm-bill programs resume at full speed with authorities extended for another year.
November 11, 2025 10:46 AM
·
A smaller U.S. turkey flock and resurgent avian flu have tightened supplies, driving prices higher even as other key holiday foods show mixed trends.
November 10, 2025 03:05 PM
·
Kate Walker has the story, highlighting how students are learning to protect and preserve natural resources while gaining valuable technical and teamwork skills.
November 10, 2025 12:40 PM
·
