Bird flu detected at Utah mink farm
Archived — this story has rotated out of today’s deck. It is kept here in full.
The gist
USDA labs confirmed HPAI in captive American mink in Salt Lake County, Utah, in August 2026.
Experts warn mink farms can mix bird and human flu viruses.
Background
C&T Fenn Farms is a mink farm about an hour's drive south of Salt Lake City. In August 2026, USDA National Veterinary Services Laboratories (the federal lab that confirms animal disease) detected highly pathogenic avian influenza (HPAI, a severe form of bird flu) in its mink — the first known case in captive mink in the Americas. The viruses belong to the H5N1 strain circulating in US dairy cattle since 2024, and the closest match was Texas cattle viruses sampled May 28, 2026. The case drew attention because mink are susceptible to both bird and human flu viruses, and there are no federal rules for handling sick mink, unlike poultry.
How it unfolded
- Aug 7, 2026Samples were collected from mink on the Utah farm; ten genome sequences from them were used in the analysis.
- Aug 17, 2026USDA's National Veterinary Services Laboratories detected HPAI by PCR in captive American mink in Salt Lake County, Utah.
- Sep 2026The Animal Welfare Institute released Utah Department of Agriculture and Food communications obtained by public records request, showing officials were unsure how to manage the outbreak.
- Sep 27, 2026The Salt Lake Tribune reported bird flu was ravaging a Utah mink farm, killing 80% of the herd, with state agriculture officials having no clear plan.
- Sep 29, 2026The outbreak was reportedly still ongoing, based on the APHIS website and news sources, though no later samples were available.
- Oct 23, 2026ProPublica reported the outbreak had raged uncontrolled on C&T Fenn Farms for over two months.
- Oct 23, 2026Veterinary experts for Animal Wellness Action and the Center for a Humane Economy wrote to House and Senate Agriculture Committee leaders warning about a 2026 Farm Bill provision to reopen federal taxpayer support for mink fur exporters.
Who’s saying what
- Expert
- Tom Peacock of the Pirbright Institute said other countries with H5N1 in fur farms depopulated quickly, and that not doing so first was very concerning to him.
- Caution
- Gail Hansen, a former Kansas state public health veterinarian, said Utah doesn't want to be the epicenter of the next human flu outbreak.
- Analysts
- ProPublica described the farm as a "perfect petri dish" for a new strain, because the flu would need an animal vulnerable to both human and bird viruses.
- Party
- Jim Keen of the Center for a Humane Economy called mink farms "biological ticking time bombs" and questioned why Congress would fund mink fur exporters.
Still unverified
The farm reportedly expected to lose about 80% of its mink, but that was a projection, not a verified final mortality count. Records do not establish that the virus spread from mink to people or show sustained mink-to-mink transmission in this outbreak. Correspondence described efforts to obtain emergency authorization for vaccination, but did not establish that vaccines were provided. Several months of unsampled transmission chains between the Texas cattle and Utah mink outbreaks leave open how the virus entered the farm.