JACOPIN / SCIENCE PHOTO LIBRARY JACOPIN / SCIENCE PHOTO LIBRARY
AIDS, RESEARCH Production of fragments of the AIDS virus from a DNA loop. Illustration showing the production of fragments of the AIDS virus from a DNA loop injected as a vaccine into the organism. The DNA loop penetrates a macrophage which then reproduces the virus fragments that are present on its surface. Recognized by the T lymphocytes, the activated fragments trigger an immune reaction.
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