Word: bacillus
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Dates: during 1923-1923
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...years!) These unthinkable populations are held in check, however, by competition, lack of food, poisons, etc. At a moderate estimate, 30 trillions of bacteria are excreted from one human body each day. Yet these 30 trillions weigh, on the average, only two ounces. The biggest known microbe is the bacillus bütschlii (found in the cockroach), which may be 50 microns (one 500th of an inch) in length and about one-tenth as wide. Among the smallest is the bacillus influenzae (0.8x0.3 microns), although the filterable viruses are believed to consist of ultramicroscopic organisms very much smaller...
...Winter in cool climates. The species is prevented from dying out by the ability of the larvae to exist for long periods in a sort of hibernation. Dr. Robertson advocates a flea survey of the cities of the Atlantic Coast to verify the details of the life cycle of Bacillus pestis, the causative organism. If fleas are relatively abundant on rats at all seasons of the year in this region, the absence of plague must be wholly accidental. But if there are few or no fleas during the cold months, theories regarding the carriers of plague would seem...
Professor Cabrilovitch, Russian emigre working in Paris, has developed a serum called phagolysin based on Koch's tuberculin formula, which is administered by mouth and is described as setting up an effective resistance to the tubercle bacillus. It is being used in the open-air schools for tuberculous children...
...Robert Koch (1843-1910), German, director of the Berlin Hygienic Institute, isolator of the tubercle bacillus (1882) and discoverer of tuberculin...
...Elie Metchnikoff (1845-1916), Russian, sub-director of Pasteur Institute, Paris, inventor of " phagocytosis "theory of white blood corpuscles, discoverer of therapeutic value of lactic ferments (Bacillus bulgaricus...