The shelter euthanized all of its cats that became infected and has stopped adoptions.
The symptoms first showed up a few weeks ago, but the virus wasn’t diagnosed until one cat showed distinctive sores in its mouth, Executive Director Nicky Ratliff told the Carroll County Times.
Calicivirus is extremely contagious among cats. It causes breathing problems, fever and mouth ulcers that can lead to death for kittens and older cats.
The Humane Society has vaccinated all of its Westminster cats and scrubbed down the shelter.