A fox that bit a woman and attacked a cat in Fairfax County on Wednesday has tested positive for rabies, police said.

The fox was euthanized after a rabies test came back positive, according to Officer Tawny Wright, a spokeswoman for the Fairfax County Police. She said the local health department is working with the woman to make sure she receives the proper care and that the cat is under quarantine for at least 45 days, as is required by regulations for treating those infected with rabies.

The attacks began around 3 p.m. when the woman was walking in the 600 block of Ad Hoc Road in Great Falls. The fox came from behind and bit her at least twice in the lower body, officials said. She turned to try to get the animal off, according to police, and was then bitten a few more times. After she managed to get away from the fox, she went to a nearby house and called police.

She was taken to a hospital with serious injuries, police said.

About an hour later, police said, a cat was attacked about three miles away in the 400 block of Chesapeake Drive. The cat owner kicked the fox away, and her husband trapped it and held it until authorities arrived and euthanized it.

Martin Weil contributed to this report.