In the U.S., as many as 10,000 garden minks have died from the coronavirus in Utah and Wisconsin, the television company CNN says.
According to preliminary studies, the virus has infected some people.
According to state veterinarian Dean Taylor, in Utah, farm workers became ill with the coronavirus in July, and the first infections in mink were diagnosed in August.
Read more: Minki has been diagnosed - THL is concerned about the spread of the disease to Finnish fur farms
"Everything speaks in favor of the virus being transmitted from humans to animals," Taylor told CNN.
In Utah, the virus has spread to nine different mink farms.
Each shelter is placed in strict quarantine, and only the necessary number of workers are allowed to work in the shelter.
According to Taylor, the coronavirus behaves in mink in the same way as in humans and causes breathing difficulties, among other things.
With us, the disease progresses remarkably fast, and the animal usually dies the day after the illness.
At least 8,000 mink deaths have been recorded in Utah and 2,000 in Wisconsin.
The fur of mink that have died of the virus has been destroyed by either burial or cremation.
Mink is a species of woodcock native to North America that is bred in orchards as a fur animal because of its silky soft fur.
In the past, the coronavirus has been found to infect at least dog, cat, lion, and tiger animal species.
THL in Finland has also warned about the coronary danger of mink farms.
According to the THL, infected animals can still infect their species and coronavirus in humans.
At least in the Netherlands, the infection is suspected to have passed from mink to the shelter worker.
So far, no corona infections have been detected in fur farms in Finland.
The Finnish Food Safety Authority has instructed keepers of fur animals, and according to the instructions, animals may only be treated in good health.
If a keeper is assigned to quarantine, he may not treat fur animals during his quarantine.