Word: pneumonia
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Dates: during 1930-1939
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Type I causes one-third of these pneumonia cases, kills 25% to 30% of its victims. Young persons seem especially susceptible to this Type I. For this there is already a beneficial serum...
Type III, which seems to have preference for elderly people, occurs in 10% to 15% of pneumonia cases. It kills 50% of its victims...
Types III and IV are usually present in the mouths of healthy people, become noxious under certain conditions of disability. For some reason doctors and nurses seldom contract pneumonia from their patients. But others may contract the disease in such numbers that an epidemic develops. Sunlight kills all types of pneumococci very rapidly (within iJ hours). In dark rooms the germs may live and infect for ten days...
...characteristic of all these pneumonia cells is that they are gum-coated. Their outer casings, or capsules, contain polysaccharides. Those gum-coatings are what make the germs virulent, deadly. Each type has its own peculiar coating. Without their coating the pneumonia germs are not very dangerous...
...bred enzyme and Type III pneumococci are mixed in a test tube, the pneumococci are skinned, like Samson lose their potency. The mixture Dr. Avery has injected into mice and rabbits, with no harm ensuing. An injection of the bog-ferment into animals apparently dying from Type III pneumonia cured them...