ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
AIDS blood test. Gloved hands carrying out a blood test for AIDS. They are using a pipette to transfer material into a sample tube. AIDS (acquired immune deficiency syndrome) is caused by HIV (human immunodeficiency virus). Blood tests check for the presence of antibodies to this virus. AIDS is a fatal disease in which viruses invade and destroy white blood cells, leading to the failure of the immune system.
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