. Medical diagnosis for the student and practitioner. producing there a map-like configuration. Upon the body the exanthem68 May bemiscalled. Important differential points. Still sub-judice. A dubiousentity. io74 MEDICAL DIAGNOSIS assumes the form of a more or less closely packed agglomeration of discretecrescentic patches. It is of slight clinical interest. DIPHTHERIA.—(Cynanche maligne, putrid sore throat, suffocative angina,membranous croup.) Definition.—An acute highly infectious, contagious and profoundly toxicdisease, due primarily to the Klebs-Loeffier bacillus, but often a mixed infect
. Medical diagnosis for the student and practitioner. producing there a map-like configuration. Upon the body the exanthem68 May bemiscalled. Important differential points. Still sub-judice. A dubiousentity. io74 MEDICAL DIAGNOSIS assumes the form of a more or less closely packed agglomeration of discretecrescentic patches. It is of slight clinical interest. DIPHTHERIA.—(Cynanche maligne, putrid sore throat, suffocative angina,membranous croup.) Definition.—An acute highly infectious, contagious and profoundly toxicdisease, due primarily to the Klebs-Loeffier bacillus, but often a mixed infection,characterized by the development of a nasal, pharyngeal orlaryngeal false membrane and especially affecting youngchildren. Dissemination and Distribution.—The disease iswell-nigh universal and is readily disseminated by con-tact, contiguity (cough dissemination), clothing, drink-ing utensils, pencils, school books, and intermediaries,such as parents, nurses, physicians, and certain personswho undoubtedly carry the germ, but are themselves. Fig. 517.—Diph-theria bacillus (bacil- unafTected. Such may carry the germ for months or Loeffler? Pleomor-years and some of them are culturally positive yet non- phic, non-motile, non-virulent as to the strains carried. So also foodstuffs, flageiiate, non-lique-pet cats and dogs, room or street dust may convey it. fying, non-chromo-Individual Susceptibility.—A decided natural im- ftntivTted^andmunity to diphtheria exists in the great majority of stained by allindividuals. This is clearly indicated by the results brook has described (1) a virulent typewith clubbed extrem-ities and polar gran-ules, (2) granulartype, (3) barred type,(4) solid type. obtained by the application of Schicks intracutaneoustest. -It would appear that 75 to 80 per cent, of newbornbabes, 40 to 50 per cent, of children between one andfive years of age, 75 per cent, of those between theages of ten and fifteen, and 90 per cent, of adults are thus protected;(
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
