Answer:
AIDS stands for Acquired Immunodeficiency Syndrome. It is
caused by retrovirus (RNA virus) known as HIV (Human Immuno deficiency Virus).
It attacks WBCs of human beings and weakens the human
immunity or self-defense mechanism.
(i) Symptoms of this diseases are Swollen lymph nodes,
regular fever, sweating at night and weight loss.
(ii) Loss of memory, ability to speak and clear thinking
due to damage of brain.
Its preventive measures are
(i) Common razors at barber's shops should not be used.
(ii) Blood donor should be first tested.
(iii) Disposables needles and syringes should be used.
(iv) Sexual contact with unknown people should be avoided.
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