National Resource for Automated Molecular Microscopy, The Scripps Research Institute, La Jolla, Calif.
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This image shows a three-dimensional reconstruction of a rotavirus at a magnification of about 50,000. Rotavirus infects humans as well as other animals and causes severe diarrhea in infants and young children. There are very few fatalities in the United States and other places where a vaccine is available, but elsewhere, the virus is responsible for more than 450,000 deaths each year.
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