. Medical diagnosis for the student and practitioner. ly abort especially if the preg-nancy is advanced, and show a mortality which in certain instances has beenreported as reaching 60 per cent. In the epidemic of 1918 it was found that those individuals who survivedfor a week or ten days after the onset of pneumonia usually , as has been stated by Selby quoted in this article, those caseswhich showed only a unilateral pneumonic involvement yielded a relativelyslight mortality. As stated previously, the heart suffers seriously from the toxemia of thisdisease and those who
. Medical diagnosis for the student and practitioner. ly abort especially if the preg-nancy is advanced, and show a mortality which in certain instances has beenreported as reaching 60 per cent. In the epidemic of 1918 it was found that those individuals who survivedfor a week or ten days after the onset of pneumonia usually , as has been stated by Selby quoted in this article, those caseswhich showed only a unilateral pneumonic involvement yielded a relativelyslight mortality. As stated previously, the heart suffers seriously from the toxemia of thisdisease and those who carry a chronic heart lesion are more greatly endan-gered during the attack and are prone to show its effects for long periodsthereafter. A failure to appreciate this fact results very seriously for anenormous number of cardiopaths and every physician should watch theheart carefully during convalescence and prolong this so far as is necessaryto secure for the patient the best possible reestablishment of his myocardialreserve. ASIATIC CHOLERA 103 I. ASIATIC CHOLERA (The Death Blow) Definition.—An acute infection caused by the comma bacillus of Koch and characterized by profuse rice-water diarrhea, violent muscle cramps and collapse. Historic Note.—It is one of the most ancient of diseases in the East, but of comparatively recent development in the United States, the first epidemic having occurred in 1832. Etiology.—Koch reported his discovery of the comma bacillus in 1884. The germ retains its vitality for a week or more on foodstuffs, such as butter, milk, and meat, lives but a day or two in oysters, but finds sewage a good culture medium. Water is a great conveyor and flies also carry it, but it travels no faster than man, following the trade channels, whether these be railways, canals, rivers, or steamship lines, tending to spread from India, where it is endemic, to all parts of the civilized world. The great pilgrimages, fairs, and festivals serve to disseminate it wid
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