Sudden behavior changes
Unusual aggression
Extreme fearfulness or irritability
Excessive drooling or foaming at the mouth
Trouble swallowing
Weakness or paralysis
Staggering, wobbling, or loss of coordination
Seizures
Vocal changes or unusual meowing
Restlessness or agitation
Sensitivity to light, sound, or touch
Biting or attacking without reason
Lethargy or collapse
Signs of a bite wound or recent exposure to a wild animal
Immediate veterinary evaluation if rabies is suspected