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Bird flu outbreak at Utah mink farm raises questions over federal response

An outbreak of avian influenza at a fur‑raising mink farm located roughly an hour from Salt Lake City has drawn sharp criticism from infectious‑disease experts who say the federal response has been opaque and insufficient. The virus, which has circulated among the animals for about two months, has not yet been linked to human cases, but experts warn that secrecy could hinder prevention efforts.

Outbreak and regulatory actions

The Utah farm, which raises thousands of mink for their fur, reported the bird‑flu outbreak earlier this year. State veterinarian Amanda Price led the local response and sought assistance from the U.S. Department of Agriculture (USDA). According to records obtained by ProPublica, USDA officials replied that they do not regulate mink and have no approved vaccine for the species, leaving the state to manage the situation on its own. The Centers for Disease Control and Prevention (CDC) spoke with Utah health‑department staff but did not directly engage with Price.

In other nations where similar outbreaks have occurred, authorities have ordered the rapid culling of affected mink. Veterinarians familiar with the case told ProPublica that such depopulation is the standard response, and avian‑influenza researcher Tom Peacock of the Pirbright Institute described the lack of culling in Utah as “very concerning.” A fur‑trade representative warned that eliminating the mink at C&T Fenn Farms would devastate the business and the broader industry.

Expert criticism of transparency

Jennifer Nuzzo, an epidemiology professor and director of the Pandemic Center at Brown University School of Public Health, said the apparent lack of openness from government officials is troubling. In a phone interview she stated, “No animal or human will be protected from the toll of this virus through secrecy.” She added that the greatest risk lies with workers who have direct exposure to sick animals, though she noted that the virus does not appear to be spreading beyond the farm.

According to ProPublica, farm workers were not systematically monitored for symptoms despite CDC guidance recommending such surveillance. The outlet identified two employees, one of whom reported a red eye—a symptom the CDC advises testing for. Farm owner Chad Fenn attributed the eye irritation to dust and said the state health department did not recommend testing.

Nuzzo expressed concern that, during the second Trump administration, federal monitoring of farms for emerging viruses has diminished. She cited the firing of federal employees who were handling a bird‑flu outbreak among dairy cows shortly after President Trump took office, and noted that regular briefings with disease experts—once a staple of the response process—have largely ceased.

Historical context and future risk

This is not Utah’s first recent fur‑farm crisis. During the COVID‑19 pandemic, nearly 10,000 mink died in the state and quarantines were imposed on nine farms after workers likely transmitted the coronavirus to the animals, as reported in the journal Emerging Infectious Diseases. Scientific literature also confirms that mink are highly susceptible to several human viruses, according to the Proceedings of the National Academy of Sciences.

Nuzzo warned that while she sees no immediate sign of the virus spreading, the potential for a mutant strain to combine with a human influenza virus remains a theoretical pandemic threat, especially each flu season when multiple influenza viruses circulate. She cautioned that the probability of such an event is unknown and could be zero, but emphasized the need for protective measures such as vaccinating farm workers, a strategy employed by other countries.

Overall, the Utah bird‑flu incident underscores tensions between state officials, federal agencies, industry representatives, and public‑health experts over how best to manage zoonotic threats while maintaining transparency and protecting both animal and human health.