34.6 MB (1.4 MB compressed)
4243 x 2854 pixels
35.8 x 24.1 cm ⏐ 14.1 x 9.5 in (300dpi)
DR. CECIL H. FOX / SCIENCE PHOTO LIBRARY DR. CECIL H. FOX / SCIENCE PHOTO LIBRARY
Dark field microscopy illustrating the source of AIDS cases. The micrograph shows the anatomy of human sperm and the association of spermatocytes with other cells that may carry most of the virus. Magnification 1200x at 345MM.
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