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China’s Fur Farms Seen as High-Risk Sites for Virus Spillover to Humans

Scientists warn poor regulation and dense animal housing could fuel future outbreaks

By Mark Yong

February 10, 2026
4:55 am
Los Angeles, CA

China’s fur-farming industry is drawing renewed scrutiny from scientists who say crowded conditions, weak biosecurity, and limited disease surveillance create ideal environments for viruses to spread from animals to humans. The concern follows a series of outbreaks on fur farms in eastern China that killed thousands of foxes and infected workers with severe fever with thrombocytopenia syndrome (SFTS), a potentially fatal viral disease. Researchers say the incidents underscore broader public health risks associated with farming animals such as foxes, minks, and raccoon dogs for their pelts. China is one of the world’s largest fur producers, alongside Europe and the United States. In 2021, the industry employed an estimated six million people and generated about $61 billion in revenue. Fur farming is particularly concentrated in northeastern provinces such as Liaoning

The concern follows a series of outbreaks on fur farms in eastern China that killed thousands of foxes and infected workers with severe fever with thrombocytopenia syndrome (SFTS), a potentially fatal viral disease. Researchers say the incidents underscore broader public health risks associated with farming animals such as foxes, minks, and raccoon dogs for their pelts.

China is one of the world’s largest fur producers, alongside Europe and the United States. In 2021, the industry employed an estimated six million people and generated about $61 billion in revenue. Fur farming is particularly concentrated in northeastern provinces such as Liaoning and Shandong, where animals are typically kept in dense rows of wire cages.

Scientists say disease outbreaks on these farms were common but largely undocumented before the Covid-19 pandemic brought greater attention to zoonotic threats—diseases that can jump from animals to humans.

Recent studies have linked several of those outbreaks to SFTS, a tick-borne virus first identified in humans in China in 2009. The disease causes fever, gastrointestinal symptoms, low platelet counts, and in severe cases, organ failure. According to Yu Xuejie, a microbiologist at Wuhan University who helped identify the virus, China reported approximately 5,500 confirmed human cases last year, nearly triple the number recorded five years earlier.

While SFTS has primarily been associated with ticks, scientists say fur farms may amplify transmission once the virus is introduced. In late 2023, veterinarians began reporting mass die-offs of foxes on farms across Shandong and Liaoning provinces. Animals developed nasal discharge, stopped eating, passed dark stools, and died within days. Some farms lost up to one-third of their animals.

A research team led by Shi Weifeng of Shanghai Jiao Tong University of Medicine collected tissue and environmental samples from affected farms. Nearly all tested foxes carried high levels of the SFTS virus, and postmortem examinations revealed widespread organ damage and hemorrhaging. Genetic analysis showed multiple viral lineages circulating simultaneously, including reassorted strains formed by the exchange of genetic material between viruses.

The researchers concluded that the virus had been introduced to farms multiple times, though the initial source remains unclear. Only one tick was found during sampling, and it tested negative. Scientists suspect contaminated feed or infected wildlife attracted to farm waste may have played a role.

Evidence is also mounting that the virus can spread directly between animals once inside a farm. Similar patterns have been observed in mink farms, where illness appears to pass rapidly between neighboring cages.

Human infections linked to fur farms have further heightened concern. In October 2023, two workers at a large fur farm in Shandong province fell ill with SFTS. One, a 60-year-old woman, died within a week. An epidemiological investigation found no evidence of tick exposure. However, multiple environmental samples from the skinning area tested positive for the virus.

Investigators reported that workers frequently skinned animals without protective equipment and were often splashed with blood. Genetic sequencing showed near-identical viral strains in the animals, the environment, and the infected workers, suggesting direct transmission. Researchers hypothesized that virus-containing aerosols generated during skinning may have been inhaled.

Laboratory studies support that possibility. Public health researchers say skinning can release fine droplets of blood and tissue that remain suspended in the air and enter the lungs, where the virus can replicate.

Beyond SFTS, scientists have identified dozens of other viruses circulating in farmed fur animals in China, including influenza viruses and coronaviruses capable of infecting humans. In one nationwide survey of diseased fur animals, researchers detected nearly 40 viruses with high spillover potential.

Eddie Holmes, a virologist at the University of Sydney and a coauthor of several studies on fur-farm pathogens, said the combination of high animal density and “near-zero biosafety” makes the industry particularly dangerous. “These farms are exactly the kinds of environments where new epidemics can emerge,” he said.

Some countries have banned fur farming since the Covid-19 pandemic, citing animal welfare and public health concerns. Others have opted for stricter regulation. After bird flu outbreaks swept through Finnish fur farms in 2023, authorities mandated indoor housing, bird-proof barriers, and personal protective equipment for workers, with special emphasis on safety during skinning.

Researchers studying China’s outbreaks say similar measures—along with regular disease surveillance in animals and workers—are urgently needed. Without them, they warn, fur farms could become a flashpoint for future epidemics.

As global demand for fur declines, some analysts believe the industry may shrink on its own. Scientists caution, however, that as long as fur farming continues under current conditions, the risk of dangerous viral spillovers will remain.