Rabies

An acute viral infection oft the nervous system, usually fatal, often passed on t humans through contact with animal saliva. There is no current treatment for rabies.
One of the most commonly acknowledged symptoms is the engrossing"foaming at the mouth" bit. This symptom is highly overrated. The foaming is no big deal; it's not a big frothing mass like a bubble bath. In fact, it's quite subtle, a thin foam resembling creme fraiche or a light hollandaise. By the time you've spotted it, it's usually too late. Cut and run.