Sudden behavior changes, such as unusual aggression or extreme fearfulness
Unprovoked biting or snapping
Excessive drooling or foaming at the mouth
Difficulty swallowing
Staggering, weakness, or loss of coordination
Paralysis, often starting in the hind legs or jaw
Restlessness, agitation, or unusual hyperactivity
Sensitivity to light, sound, or touch
Strange vocalizations or barking changes
Seizures
Acting disoriented or confused
A history of a bite or exposure to a wild animal
Immediate veterinary evaluation if rabies is suspected