It is by no means always safe to make a diagnosis of diphtheria from the presence of so-called false membrane in the throat or upon any other mucous or epithelial surface, as it is perfectly well known clinically, and has been demonstrated bacteriologically, that such a condition may be due also to the activity of other micro-organisms than diphtheria bacilli, and even with out the intermediation of bacteria; for instance, as a result of the action of hot liquids or corrosive poisons or vapors. Thus, it has been shown that the angina of scarlet fever is not dependent on the activity of diphtheria bacilli, but is probably due to that of streptococci, and the oidium albicans is capable of giving rise to depositions of thrush that may cause some doubt in diagnosis. In addition to these, it is pointed out by Dr. W. G. Bissell2 that the micrococcus of
MEMBRANOUS ANGINA DUE TO OTHER MICRO-ORGANISMS THAN DIPHTHERIA BACILLI.. JAMA. 1901;XXXVI(7):448–449. doi:10.1001/jama.1901.02470070034008
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