THE BACTERIOLOGY OF WHOOPING COUGH

Abstract
In 1906, Bordet and Gengou1 succeeded in cultivating Bacillus pertussis from cases of whooping cough. Since their pioneer discoveries, isolated reports of a few cases each have been published, but in this country routine cultures in cases of whooping cough have had little vogue. The work of Meyer, Chievitz2 and their co-workers at the Danish Serum Institute has demonstrated conclusively the value of bacteriologic methods in the diagnosis of this disease, and their studies, now extending over a number of years, have been too little appreciated in the United States. In a report covering 1,106 cases they were able to isolate the causative organism in 970, a percentage of 87.7 isolations. Dividing these cases into groups according to the stage of the disease at the time cultures were taken, their success may be tabulated as shown in table 1. In the United States, reports on the bacteriology of the

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