The Humane Society of Washington County reported its fourth rabid animal case since Christmas 2003.
On June 30, a raccoon killed by two dogs on John Brown Lane in Knoxville, Md., tested positive for rabies, according to a press release.
It's the second reported rabies case in the Knoxville area this year, humane society officials said.
The dogs were current on their rabies vaccination and, according to Washington County Environmental Health Department guidelines, will require a rabies vaccination booster and a 45-day quarantine.
The other two rabies incidents occurred on Dorsey Road south of Williamsport and on National Pike near Big Pool.
Rabies is a deadly disease that attacks the nervous system. Once the virus reaches the brain, it is fatal and there is no cure, according to the press release. Contracted mainly through bites, rabies also can be spread through open wounds, breaks in skin and mucous membranes such as the lining of the eyes, nose and mouth.