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Fluorescent LM view of HIV+ blood in HLA typing

Fluorescent LM view of HIV+ blood in HLA typing

M530/0275

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Credit

SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY

Caption

HIV+ blood test by HLA typing. Fluorescent light micrograph view of human white blood cells testing HIV-positive, in a "Human Leucocyte Antigen" (HLA) blood-typing test. HIV (Human Immunodeficiency Virus) is the virus which causes AIDS. Here, a patient's "leucocyte" white blood cells are coated on small orange glass beads. An HIV-positive result is obtained when cells on the beads do not fluoresce green, but instead die. The cells die when an antibody-antigen complex is active because the patient's blood sample contains antigens from the HIV virus. The HLA test (called a complement- fixation test) can tell the severity of infection by the strength of the antibody-antigen reaction.

Release details

Model release not required. Property release not required.

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