Continuing story · 1 report

The Benton County dairy herd bird flu outbreak

First aired October 27, 2026 at 10:52 PM UTCLatest aired October 27, 2026 at 10:52 PM UTC

DevelopingNext check Oct 28: Look for Benton herd containment updates, any worker monitoring or testing findings, disclosure of the affected-cow total, and quarantine-release conditions or status.

Where it stands

H5N1 bird flu was detected at one Benton County dairy farm, the first such detection in the county, through routine surveillance before cows showed symptoms. The herd is quarantined, and veterinarians are treating sick animals; its impacts and eventual clearance or official closure remain open.

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1 report15 outlets21 sources

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Update 1Oct 27 22:52 UTCBird flu reaches Benton County dairy; workers face a different risk than milk buyers

The story so far

Update 1Oct 27 22:52 UTC
Bird flu reaches Benton County dairy; workers face a different risk than milk buyers
Surveillance caught H5N1 before cows became sick. The newly affected Washington herd sharpens the need for worker protection—not a warning against pasteurized milk.

History

Oct 27 UTC
Opened1 report

Who's involved

Organizations

United States Department of Agriculturedepartment of the US government1 report
Washington State Department of Agriculturegovernment organization in Olympia, United States1 report

Every outlet we read on this story

21 sources15 outlets

Washington Department of Fish & Wildlifewa.gov7
Big Country Newsbigcountrynewsconnection.com1
1. First reported Oct 27 03:02 UTC
2. WSDA Confirms HPAI In Dairy Herd In Benton CountyOct 27 UTC
capitalpress.com1
1. Bird flu in diary cattle spreads to second Washington county | Capital Press
Center for Agricultural and Shale Lawpsu.edu1
1. APHIS Requirements and Recommendations for Highly Pathogenic Avian Influenza (HPAI) H5N1 Virus in Livestock For State Animal Health Officials, Accredited Veterinarians and Producers
Elkhorn Media Groupelkhornmediagroup.com1First
1. First reported Oct 26 20:30 UTC
2. Bird flu detected in Washington state dairy herdOct 26 UTC
Erica Spackman et al., Journal of Food Protection, 2024doi.org1
1. Inactivation of Highly Pathogenic Avian Influenza Virus with High-temperature Short Time Continuous Flow Pasteurization and Virus Detection in Bulk Milk Tanks
Forest Serviceusda.gov1
1. Technical Brief: Estimating the Probability of Highly Pathogenic Avian Influenza Detection in Bulk Tank Milk at Various Sampling Times Using Disease Event Surveillance Data
KIRO 7 News Seattlekiro7.com1
1. First reported Oct 26 21:28 UTC
2. Washington dairy herd quarantined after bird flu detectionOct 26 UTC
legistorm.com1
1. WSDA confirms HPAI in dairy herd in Benton County - Washington State Department of Agriculture Press release | LegiStorm
Maryland State Fire Marshalgovdelivery.com1
1. USDA Confirms Highly Pathogenic Avian Influenza in Two Dairy Herds in Washington
miamiherald.com1
1. Bird flu confirmed in Washington dairy cows 2 weeks ago. Now it’s in a second county
The Seattle Times — Localseattletimes.com1
1. First reported Oct 27 14:04 UTC
2. Bird flu found in Central WA dairy herd; officials warn against raw milkOct 27 UTC
tri-cityherald.com1
1. Bird flu found in Tri-Cities area dairy; raw milk unsafe | Tri-City Herald
tricitiesbusinessnews.com1
1. First reported Oct 27 01:00 UTC
2. Avian influenza detected in Benton County dairy herd | Tri-Cities Area Journal of BusinessOct 27 UTC
yakimacounty.us1
1. Avian Influenza (Bird Flu) | Yakima County, WA

The story so far

Bird flu reaches Benton County dairy; workers face a different risk than milk buyers

History

Who's involved

Organizations

Every outlet we read on this story