Wastewater testing finds HPAI H5N1 in 9 of 10 Texas cities

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:

Virome Sequencing Identifies H5N1 Avian Influenza in Wastewater from Nine Cities (medrxiv.org)

NOTE: This article is a preprint and has not been certified by peer review [what does this mean?].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.

Related Stories
Eligible producers have until July 15 to purchase coverage for the 2027 commodity year.
Industry leaders say rising Tier 2 imports are adding pressure to domestic producers.
Roland Leatherwood with The Mosaic Company discusses field scouting, nutrient deficiency detection, tissue sampling, and in-season nutrient management amid high fertilizer prices.
Storage preparation remains an important step as wheat harvest moves north.

Marion is a digital content manager for RFD News and FarmHER + RanchHER. She started working for Rural Media Group in May 2022, bringing a decade of digital experience in broadcast media and some cooking experience to the team.

LATEST STORIES BY THIS AUTHOR:

Officials say the FDA-approved generic drug kills most screwworm larvae within hours of administration. The medication is available in two dosage strengths and is administered based on an animal’s weight.
StoneX Director of Fertilizer, Josh Linville, joins us to discuss fertilizer market trends and risk management strategies to navigate an uncertain farm economy and fluctuating agricultural input costs.
Secretary Brooke Rollins announced the distribution of a comprehensive memorandum on Friday in Fort Worth, at RFD-TV’s Rural Town Hall presented by the Western Caucus Foundation.
The special presentation by RFD-TV and the Western Caucus Foundation will feature keynote remarks by U.S. Secretary of Agriculture Brooke Rollins.
AFBF Economist Bernt Nelson discusses biosecurity to prevent New World Screwworm and financial tools to support livestock as eradication efforts continue.
Dr. Stephanie Mercier, Senior Policy Adviser for the Farm Journal Foundation, discusses USDA’s New World Screwworm eradication, sterile fly production, trade restrictions, biosecurity, and the path ahead for U.S. cattle producers.
Agriculture Shows
How Farms Work is a family-friendly YouTube channel that showcases beef and crop farms located in Southwestern Wisconsin. Equipment operation, techniques, and farming strategies are all first-hand accounts given by Ryan, an Agriculture Business major whose family runs these farms.
Misilla is the host of Learn to Grow and The Crafty Mom on YouTube. A Pacific Northwest mother of four who is passionate about organic gardening, sustainable living, homesteading, and education, her videos and social media posts consist of gardening, outdoor recreation, healthy living, crafts, science experiments, DIY projects, and delicious recipes.
In the first week of each month, “Down Home Virginia,” produced by the Virginia Farm Bureau, airs its half-hour program. Other states’ Farm Bureaus featured on different weeks include Texas, Arkansas, Indiana, Illinois, Tennessee, Idaho, and New York, and news from the American Farm Bureau from Washington, D.C.
Created by former Louisiana Farm Bureau PR Director and former host Regnal Wallace, “This Week in Louisiana Agriculture,” is one of the state’s longest-running TV programs.