HIV stands for Human Immunodeficiency Virus (HIV). The virus infects and gradually destroys the cells in the body that usually combat infections leaving the body susceptible to diseases it would normally be able to fight.
Without treatment, the immune system will become too weak to fight off illness and a person with HIV may develop rare infections or cancers. When these are particularly serious, the person is said to have AIDS (Acquired Immune Deficiency Syndrome).
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