Rabies: It is a viral disease caused by infected animal bite.
A person bitten by an infected animal has neurological problems such as partial paralysis, hypersalivation and he fears from light and water.
AIDS: AIDS is caused by HIV virus.It is a retrovirus that infects the vital organs and cells of the human immune system.
A person suffering from AIDS might have diarrhoea, dry cough, fever of above 100 degree farheinheit,night sweats,permanent tiredness, shortness of breath, swollen glands lasting for weeks, unintentional weight loss,white spots on tongue or mouth.
Plague: Plague is an infectious disease caused by bacterium Yersinia pestis.Symptoms of plague include fever, weakness,headache, swelling of lymphnodes etc. In septicemic form of plague the tissues may turn black. In pneumonic form of plague, shortness of breath, pain in chest and cough may appear.