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| Acquired immunodeficiency syndrome [Go Back to Keywords List Page]  | tumors
AIDS (acquired immunodeficiency syndrome) attacks the body's
immune system. The immune system is a natural defense
system that protects against foreign substances and invading
organisms, such as bacteria, that cause disease. Because
the person with AIDS can no longer fight off disease
successfully, secondary infections, cancers, and tumors
can more easily invade the body.
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 | HIV Infection and AIDS: What You Need To Know
The Human Immunodeficiency Virus (HIV) is the cause of Acquired Immunodeficiency Syndrome (AIDS), a fatal disease that is now killing millions of people worldwide. HIV weakens the immune system of the body, leaving those affected susceptible to many diffe |
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