False-colour TEM of AIDS virus, HIV-2

False-colour TEM of AIDS virus, HIV-2

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Credit: CNRI/SCIENCE PHOTO LIBRARY

Caption: False-colour transmission electron micrograph (TEM) of two particles of HIV-2, a virus causing AIDS. The viral protein coat (orange) has small surface projections; inside, a cone-shaped nucleoid (red) contains genetic material in the form of RNA. HIV-2 (Human Immunodeficiency Virus type 2) is more closely related to the Simian Immunodeficiency Virus (SIV) of monkeys, than is HIV-1. However, both types attack T-lymphocytes (white blood cells) of the human immune system, undermining the body's defences & exposing those infected to a range of opportunistic infections. Magnification: x26,200 at 6x7cm size.

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Keywords: aids virus, false-coloured, hiv-2, human immunodeficiency virus, virus

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