Virologists in the Department of Infectious Disease at Imperial College London, warn that mink farming poses a risk for the emergence of future disease outbreaks and should be considered in the same risk level category as the bushmeat trade and live animal markets.
Credit:
Jo-Anne McArthur / We Animals Media
Virologists from Imperial College London have issued a dire warning
about the potential for the next global pandemic to originate from
fur farms, urging for the worldwide closure of mink farms to
mitigate the danger they pose to public health and global
biosecurity.
In an article published in the scientific journal Proceedings of the
National Academy of Sciences (PNAS), experts advocated for
authorities to regard this risk on par with the dangers posed by the
bushmeat trade and live animal markets.
“As with any intensive farming, fur farming takes place in a
high-density animal environment that allows for rapid spread of
viruses with pandemic potential – and for virus adaptation to
animals that would be unlikely to occur in nature,” wrote Dr Thomas
Peacock, a virologist, and Prof Wendy Barclay, chair of influenza
virology at Imperial.
“This is particularly true for normally solitary, undomesticated
carnivores, such as mink,” they said. “More so than any other farmed
species, [mink] pose a risk for the emergence of future disease
outbreaks and the evolution of future pandemics.”
Experts have stressed the risk of spillovers and new pathogens
emerging from places where thousands of animals are confined in
close proximity, such as intensive farming for food and fashion.
Mink, in particular, exhibit a high susceptibility to infection,
making them a significant concern as they are considered to be an
exceptionally vulnerable host species for circulating influenza
viruses that can evolve and impact humans.
Since the onset of the Covid-19 pandemic, the virus has spread
across more than 480 mink farms situated in 12 different countries,
sparking widespread demands for the complete shutdown of all mink
farms.
Two years ago, the Danish government ordered a temporary closure of
all mink farms, and the animals were euthanized after the discovery
of a mink variant of the coronavirus capable of transmitting to
humans. This incident garnered global attention due to concerns that
the mink could potentially introduce a new strain to humans, posing
a threat to the efficacy of vaccines.
Dr. Stuart Neil, a professor of virology at King's College London,
expressed his views on Twitter, stating, “Farming mink, raccoon
dogs, foxes etc for fur is barbaric and unnecessary in the 21st
century. It also poses an unacceptable risk in the adaptation and
emergence of respiratory viruses in humans.”
‘Time-bomb’
The PNAS article comes as animals including minks tested positive
for the highly pathogenic avian influenza H5N1 on ten fur farms in
Finland, with more awaiting test results. A Spanish mink fur farm
with 52,000 minks also experienced an outbreak of avian flu last
October.
“The establishment of animal reservoirs for viruses that evolve on a
separate trajectory from variants in humans sets a potential time
bomb for re-emergence of the virus in humans – especially as
immunity wanes in the older population and unexposed younger people
make up a larger proportion of the population,” reads the PNAS
article.
A different study published last week from Harvard Law School and
New York University, found several areas of risk for the next
pandemic, including industrial farms with millions of animals
crammed together experiencing low welfare and huge levels of stress,
the wild animal trade with minimal health checks for imported
animals, and the fur trade that raises minks and other animals for
their coats.
Last month, a new bill, the ‘Mink: Vectors for Infection Risk in the
United States Act’, known as the Mink VIRUS Act (H.R. 3783), was
introduced in the United States. The legislation aims to protect
public health and reduce the risk of zoonotic disease transmission
by prohibiting mink farming in the country.
“Mink farming poses a severe and urgent problem to public safety as
numerous studies have shown the animals are highly susceptible to
COVID-19 and can transmit a mutated form of the virus back to
humans,” said Representative Adriano Espaillat (NY-13), who
introduced the legislation.
Under the plans, a new federal grant program will help phase out
current farms within a one-year period by offering a reimbursement
to farmers.