This disease is due to the invasion of the harmful bacteria called Neisseria meningitides. If not given medical attention, this could be fatal. One common symptom of this is fever and formation of petechial rash as the bacteria destroys the blood capillaries. Other symptoms would include headache, congestion, nausea, vomiting and muscle pain. Note that this disease is highly contagious so the person who has this should be isolated in a hospital.