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Word: viruses (lookup in dictionary) (lookup stats)
Dates: during 1930-1939
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Usage:

...colds are not the result of chemical changes in the body as has been theorized; 2) colds are not directly caused by micrococcus coryza described by Dr. John Arthur Franklin Pfeiffer of Baltimore (TIME, June 23), or by any other visible germ; 3) colds are apparently caused by a virus, which the finest of filters cannot trap and whose source has not yet been ascertained...

Author: /time Magazine | Title: Medicine: Cause of Colds | 11/17/1930 | See Source »

...these findings were Dr. James Angus Doull, formerly of Johns Hopkins, now professor of preventive medicine at Western Reserve University (Cleveland) ; and Dr. Perrin Hamilton Long of Johns Hopkins. The John Jacob Abel Fund (Chemical Foundation's $195,000) paid their expenses. The two researchers got their cold virus in the first instance from the noses and throats of persons plainly suffering from colds. Those secretions they put through filters which were so fine that the smallest known germs could not get through. This filtrate they dabbed in the nostrils of perfectly healthy volunteers, among them girls of Goucher...

Author: /time Magazine | Title: Medicine: Cause of Colds | 11/17/1930 | See Source »

...with solutions made from the diseased brains. Several weeks later two of the puppies began to run wildly, seemed to have developed the fits. Although his results are not conclusive, Dr. Morrison's work indicates that running fits are induced by diet deficiency, are caused by an unknown virus...

Author: /time Magazine | Title: Animals: Running Fits | 9/8/1930 | See Source »

Cause of the disease is a virus so small that the most powerful microscopes cannot reveal it. It can pass through the very finest porcelain filter and still infect animals. In pathology this virus has special interest. It was the first ultramicroscopic, filterable virus discovered (1898), and gave a clue to many mysterious causes of disease. As to just what such viruses are, bacteriologists are not unanimous. They may be a kind of germ; they may be a kind of chemical...

Author: /time Magazine | Title: Medicine: Foot-&-Mouth Vaccine? | 5/19/1930 | See Source »

That is why Dr. Lignieres went directly to President Irigoyen with his last week's announcement. If he had a vaccine, it was of vast import to medicine. It might prelude vaccines for other virus diseases. To the International Congress on Veterinarian Medicine in London this August goes Dr. Lignieres for confirmation of his work...

Author: /time Magazine | Title: Medicine: Foot-&-Mouth Vaccine? | 5/19/1930 | See Source »

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