Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Contagious Diseases

those dishealthy from the sick, either by direct eases which may be contracted by the CONTAGIOUS DISEASES, those discontact with an affected part, or by incontact with an affected part, or by inand exhalations. Typical contagious diseases are Spanish influenza, diphtheria, measles, scarlet and exhalations. ish influenza, diphtheria, measles, scarlet Typical contagious diseases are Spanerysipelas, and bubonic plague. Diseases of this class are a menace vent their spread, and the sufferers are to public health, and in all civilized nations stringent methods are used to pre- CONTI usually placed in quarantine. In the United States the enactment of quarantine laws by the several States is provided in the Federal Constitution. In most States there is a State board of health which either divides the State into distriets for administration, or else delegates its authority to county, township, or city officials. a Before the World War there was a well-established system of international quarantine operating under a code drawn by Sir Shenstone Baker in 1879, which was approved by the United States, Germany, Great Britain, and many other nations.

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