An additional four cats in Hunterdon County have tested positive for bird flu, county health officials announced Thursday. The news comes one week after the state confirmed two other cats with bird flu on the same property.

The first case of the bird flu in a New Jersey cat was confirmed Friday by public health officials, who said the feline had to be humanely euthanized. A feral cat in Hunterdon County was found to

Four more cats living on the same property in Flemington have tested positive for bird flu, bringing the total number now to six, according to county health officials.