BIG SURPRISE. “So small that they cannot be seen even with a microscope, yet powerful enough to wipe out entire species, viruses were the subject of both intense investigation and wild speculation until 1935, when Rockefeller Institute scientist Wendell M. Stanley purified the tobacco mosaic virus and made one of the most surprising discoveries of the 20th century: that a virus has properties definitive of both living and nonliving matter.”
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