BACKGROUND:
Hydrophobia is a clinical sign characteristic of human rabies. This sign occurs following paroxysmal contractions of pharynx responsible for hydrophobic spasms. Rabies can develop so quickly which can lead patients to die in just a few days.
Rabies will make the muscles paralyzed sooner or later. The pain that the sufferers feel when swallowing fluids, including saliva, is due to the inability of the muscles responsible to control swallowing.