Word: bacterias
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...That man is truly ethical," he has written, "who shatters no ice crystal as it sparkles in the sun, tears no leaf from a tree, cuts no flower . . ." As a physician, Schweitzer calls himself "a mass murderer of bacteria," and says he cannot help thinking, when he peers into a microscope, "I have to sacrifice this life in order to preserve other life...
Promising Molds. Dr. Rhoads and his associates believe that no possibility, even faintly promising, should be neglected. One long shot is to look for something in the secretions of molds. One such secretion, penicillin, has a differential effect on bacteria: it kills bacteria but leaves human tissue unharmed. Molds might conceivably produce something with a differential effect on cancer cells...
Last fall, a field man reported to President Melvin that several dentists in his territory were excited over ammoniated dentifrices. Researchers at the University of Illinois and at Manhattan's Sydenham Hospital, testing the use of urea and dibasic ammonium phosphate to kill bacteria associated with tooth decay, had reported promising results...
...always asking greying Microbiologist Selman Abraham Waksman, 60, how he discovered the wonder drug streptomycin in 1943. Modest Dr. Waksman (rhymes with phlox-man) has a stock answer which makes it sound pretty simple. He merely examined about 10,000 cultures, he explains. Only 1,000 would kill bacteria in preliminary tests; only 100 looked promising in later tests; only ten were isolated and described; one of the ten proved to be streptomycin. It just happened that streptomycin was the first effective drug that doctors had ever found to fight tuberculosis...
Last week Scientist Waksman (Ph.D. University of California) announced a new, promising, greyish-colored antibiotic which he called neomycin. Like streptomycin, it is derived from actinomycetes. a group of tiny organisms that are in a twilight evolutionary zone between molds and bacteria. The first preliminary tests made since it was developed last summer look good; it may, eventually, prove better than streptomycin. Dr. Waksman and Hubert A. Lechevalier, a graduate student who worked with him, reported their discovery in Science...