---
title: "Third US Bird-Flu Death in a Year Comes From a Washington Dairy, Not a Backyard Flock"
description: "The Yakima County death is the first tied to the dairy-adapted B3.13 lineage, 32 months into the outbreak"
author: "Luis Goa"
published: 2026-11-02T21:21:43Z
modified: 2026-11-03T04:36:36Z
url: https://rews.cc/a/third-us-bird-flu-death-in-a-year-comes-from-a-washington-da-763615
language: en
tags: ["bird-flu", "dairy", "health", "infection", "virus", "science"]
publisher: "Rews (https://rews.cc)"
---

# Third US Bird-Flu Death in a Year Comes From a Washington Dairy, Not a Backyard Flock

*The Yakima County death is the first tied to the dairy-adapted B3.13 lineage, 32 months into the outbreak*

By Luis Goa · November 2, 2026 · https://rews.cc/a/third-us-bird-flu-death-in-a-year-comes-from-a-washington-da-763615

## In brief

- Yakima County, WA resident died Nov 1 of H5N1 after exposure at a dairy with infected cattle
- Third US bird-flu death since 2024; first tied to the dairy-adapted B3.13 genotype
- Washington has 34 infected dairy herds (33 Yakima, 1 Benton); CDC counts 72 US human cases total
- CDC found no mutations in the virus suggesting easier spread; no human-to-human transmission documented
- USDA still has no licensed vaccine for dairy cattle 32 months into the outbreak

A Yakima County, Washington resident died on November 1 of complications from H5N1 avian influenza after exposure to infected cattle at a local dairy. It is the third human death tied to the US bird-flu outbreak since the virus was confirmed in Texas dairy herds in March 2024, and the first death linked to the dairy-adapted genotype rather than a backyard flock. The Yakima Health District withheld the person’s name, age and gender “out of respect for the family’s privacy,” and said only that the person had underlying health conditions and had been hospitalized with severe illness since October 31, as [Ars Technica reported](https://arstechnica.com/health/2026/11/third-person-dies-of-bird-flu-since-virus-started-jumping-to-livestock/).

“Avian influenza can cause severe illness, particularly among people who have underlying health conditions,” Yakima Health District officer Dave Atteberry said in the Sunday statement. “While this is a serious and heartbreaking outcome, the risk to the general public remains low.” The district announced a third Yakima case the same day: a person exposed to the same infected herd, with mild symptoms and no hospitalization. Washington’s first dairy-herd detection this cycle came on October 8; by November 2, the state count stood at 34 infected herds, 33 in Yakima County and one in Benton County, according to the [CDC’s situation summary](https://www.cdc.gov/bird-flu/situation-summary/index.html) and reporting by [Healio](https://www.healio.com/news/infectious-disease/20261102/washington-resident-first-to-die-of-bird-flu-in-us-this-year). It is the first time the dairy-cattle genotype, B3.13, has turned up in a Washington herd at all.

![A woodcut-style barn scene shows cows behind a wooden fence, boots and a stool on straw, and a red coat hanging beside autumn leaves.](https://rews.cc/img/0024ded24ed56411d23f7ec7644719e71c553708.webp)

Zoom out and the national numbers are larger but the death count barely moves. The CDC’s running tally puts human H5N1 cases at 72 since February 2024. USDA data reported by [Medical Daily](https://www.medicaldaily.com/h5n1-bird-flu-dairy-herds-1166-usda-2026-idaho-476271) put the dairy-herd count above 1,166 across at least 19 states as of July 22. A study reported by [Phys.org](https://phys.org/news/2026-04-experts-vaccinate-dairy-cattle-bird.html) in April, when the case count stood at 71 and the death toll at two, estimated the outbreak’s total economic cost at $14 billion, with roughly $4 billion of that borne by the dairy sector alone, mostly lost milk production, not dead cattle: recovery in an infected cow takes about six weeks, and death in cattle is uncommon.

## Three deaths, three exposure routes

The three US deaths did not come from the same chain of transmission. The first, in January 2025, was a Louisiana resident over 65 who had handled sick and dead birds in a backyard flock and wild birds; the virus was clade D1.1, which circulates in wild birds and poultry and is genetically distinct from the dairy-cattle lineage, as [CNN reported at the time](https://www.cnn.com/2025/01/06/health/bird-flu-death-louisiana/index.html). The second, on November 21, 2025, was an older Grays Harbor County, Washington man, also exposed through a backyard flock, infected with H5N5, a subtype never before confirmed in a human being anywhere, [NBC News reported](https://www.nbcnews.com/news/us-news/man-washington-state-believed-first-die-rare-strain-bird-flu-rcna245293). The Yakima County death is the first of the three to come from direct cattle contact at a commercial dairy, and the first to involve B3.13, the genotype that has been circulating in US dairy herds since the outbreak began.

![A woodcut-style cow stands beside a chicken and duck casting long red shadows in a fenced pasture, with green hills and clouds behind them.](https://rews.cc/img/c607cc7b26482e1bb05bc90ba4a0a3c036a0a6e2.webp)

Three deaths in 72 confirmed cases is a case-fatality figure of 4.2 percent, but the denominator is soft. The CDC’s own breakdown shows 7 of the 72 cases were caught through routine seasonal-flu surveillance and 65 through monitoring of people already known to have been exposed on an infected farm, per the agency’s [situation summary](https://www.cdc.gov/bird-flu/situation-summary/index.html). That means the system mostly finds what it already suspects is there. Dairy workers who develop nothing worse than the conjunctivitis that marked most of the 2024 cases have little reason to seek testing, so the true infection count, and the true fatality rate, is unmeasured, not merely uncertain.

## The chain still has a dead end

CDC’s genetic analysis of the virus from the Yakima patient found no mutations associated with easier human-to-human spread or greater severity, matching every US human case since 2024, CDC spokesperson Emily Hilliard said, as [the Associated Press reported](https://www.statnews.com/2026/11/02/bird-flu-washington-state-resident-dies-infected-cattle-exposure/). No person-to-person transmission has ever been documented in the US outbreak.

**Where human cases come from** Exposure routes behind all 72 confirmed US cases since February 2024

| From | To | How |
| --- | --- | --- |
| Wild migratory birds | Backyard & commercial flocks |  |
| Wild migratory birds | Dairy cattle herds *(B3.13 genotype)* |  |
| Backyard & commercial flocks | Farmworkers / handlers | direct contact |
| Dairy cattle herds *(B3.13 genotype)* | Farmworkers / handlers | direct contact |
| Farmworkers / handlers | No documented onward spread *(0 confirmed human-to-human cases)* |  |

![Where human cases come from. Exposure routes behind all 72 confirmed US cases since February 2024](https://rews.cc/img/5cfe7b51730d722a579c71ad1766e60281578c96.webp)

Based on [CDC situation summary](https://www.cdc.gov/bird-flu/situation-summary/index.html)

That dead end is also where the system’s weak points sit. Unannounced CDC drills that sent actors posing as H5N1 patients into 73 health facilities found that roughly 40 percent of them [failed to mask and isolate the patient on time](https://rews.cc/a/actors-faking-bird-flu-catch-40-of-health-facilities-failing-a27570). Pediatric groups have separately [renewed calls to ban retail raw milk sales](https://rews.cc/a/pediatricians-renew-call-to-ban-raw-milk-sales-citing-bird-f-3e1036), after live virus turned up in raw milk from infected herds. Washington’s agriculture department repeated the same line this week: pasteurized milk and cooked meat remain safe, raw milk and undercooked dairy do not, and neither should be fed to pets.

The one tool that would cut the exposure route at its source, a licensed cattle vaccine, still doesn’t exist. Thirty-two months into the outbreak, USDA has approved none; several candidates remain in field trials. “We would be more ready to rapidly respond with vaccines should the circulating H5N1 strains become more virulent,” Gregory Gray of the University of Texas Medical Branch told [CNN](https://www.cnn.com/2026/11/02/health/bird-flu-death-2026). He made a similar case in April, when he told [Phys.org](https://phys.org/news/2026-04-experts-vaccinate-dairy-cattle-bird.html), “we already have systems in place that could support a vaccine,” and “vaccines don’t have to be perfect to be useful.” Brown University’s Jennifer Nuzzo flagged a different risk in the same CNN report: “having human cases of avian influenza at the same time as the regular flu season starts is very concerning,” since co-circulation of two flu viruses in the same host is the precondition for reassortment, not mutation of either virus alone.

Washington Governor Bob Ferguson posted condolences on X and said his office was coordinating with public-health and agriculture officials. None of that changes the two numbers that matter next: whether Yakima and Benton counties’ 34 infected herds keep shedding virus as cold weather pushes workers and animals into closer contact, and whether CDC’s case count moves past 72 before this flu season peaks.

## See also

- [USDA APHIS: HPAI confirmed cases in livestock](https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/hpai-confirmed-cases-livestock) — aphis.usda.gov · State-by-state dairy herd detection map and totals