What is AIDS? Describe along with symptoms and measures of control.

AIDS (Acquired Immune Deficiency Syndrome) is discovered for the first time in America in the year 1981.
Causes of disease: This disease is caused by the infection of a virus known as HIV (Human Immuno Deficiency Virus).
Transmission: It is transmitted through sexual contact, homosexuality, contaminated needles, blood transfusion, drugs, artificial insemination and organ transplantation etc.
Symptoms of disease: It is characterised by showing swollen lymph nodes, fever, loss of weight. The person loses the immunity against the infection. In this disease, the number of helper T-cells is reduced.
Treatment: No suitable drugs available so far against this disease. Only antiviral cells may be increased in the number by immune stimulation method.
Control: The following measures are advised to prevent the spreading of disease:
(1) Providing health education and explain the hazardous effects of AIDS.
(2) Do not reutilize the used syringe.
(3) The blood of donor person and organs of transplantation like kidney, liver, cornea of eyes, growth hormones should be carefully examined before use.