AIDS is abbreviation for Acquired Immune Deficiency Syndrome. A result of human immune-deficiency-virus (HIV) that makes the immune system less able to fight infection. The time between infection to becoming symptomatic with a disease is called incubation period. The incubation period is long as eleven years. The cause of that is in all cases pneumonia cancer or infection with bacteria and viruses.

The chart represents primary routes of transmission of the AIDS virus. The largest single group is still male to male sexual contact (at 53%), the second largest transmissi

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