Sleeping sickness is an infection of the brain that causes frequent sleep, among other symptoms.

Altitude sickness is caused by changes in the distribution of oxygen and pressure. The symptoms of altitude sickness resemble those of a cold.

Serum sickness is a type of delayed allergic response, appearing four to 10 days after exposure to some antibiotics or antiserum, the portion of serum that contains antibodies, such as gamma globulin.

The first step in treatment of serum sickness is always to discontinue the drug or other substance which is suspected of causing the reaction. After that, all treatment is symptomatic. Antihistamines, pain relievers, and corticosteroids may be given.

hair lose like leukimea,severe sickness and may cause death