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NOTE: This article is a preprint and has not been certified by peer review [what does this mean?].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.
Cattle and hog supplies continue to tighten while dairy output expands, creating a split outlook in which red-meat prices soften and milk values come under pressure from larger supplies.
November 18, 2025 03:02 PM
·
With feed supplies running tight, producers can tap into some creative options, according to University of Pennsylvania Veterinarian and Professor Dr. Joe Bender.
November 18, 2025 01:13 PM
·
The new WOTUS proposal narrows federal jurisdiction, restores key agricultural exclusions, and gives farmers clearer permitting rules after years of regulatory uncertainty.
November 18, 2025 10:58 AM
·
Here is a regional snapshot of harvest pace, crop conditions, logistics, and livestock economics across U.S. agriculture for the week of Monday, November 17, 2025.
November 17, 2025 05:05 PM
·
National Pork Board Chief Sustainability Officer Jamie Burr shares a closer look at the Pork Checkoff’s Pork Cares Farm Impact Report, a research program to increase trust in the pork supply chain.
November 17, 2025 02:03 PM
·
Ethanol markets remain mixed — weaker production and blend rates are being partially balanced by stronger exports as winter demand patterns take shape.
November 17, 2025 01:24 PM
·
Strong U.S. yields and steady demand leave most major crops well supplied, keeping price pressure in place unless usage strengthens or weather shifts outlooks.
November 17, 2025 01:17 PM
·
Retail competition and improved supplies are helping offset food inflation, pushing Thanksgiving meal costs modestly lower despite higher prices for beef, eggs, and dairy.
November 16, 2025 03:00 PM
·
While agriculture doesn’t predict every recession, the sector’s long history of turning down before the broader economy
November 16, 2025 12:00 PM
·
