February 21, 1903


JAMA. 1903;XL(8):520. doi:10.1001/jama.1903.02490080038004

The application of bacteriologic methods to the routine clinical study of typhoid fever led to the demonstration of cases of typhoid-like diseases, or paratyphoid, associated with bacilli that differ from the typical typhoid bacillus in essential biologic characteristics yet clearly belong in the same general group. These bacilli are called paratyphoid or paracolon bacilli. The number of isolated cases of paratyphoid has increased rapidly. Wherever modern bacteriologic methods have been used in the examination of typhoid fever, cases of paratyphoid have been disclosed sooner or later. Judging from current reports in medical journals and before medical societies paratyphoid would seem to be coextensive with typhoid fever. Wherever the latter occurs in endemic form occasional cases of the former may be confidently regarded as demonstrable sooner or later if examinations for that purpose are instituted.

It is most interesting, however, to learn that recently epidemic paratyphoid has been recognized in which

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