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While it is generally agreed that whooping cough is an infectious disease, there is as yet' no agreement as to the specific micro-organism to which etiologic activity can be attributed. Such organisms have been described by Burger (Berliner Klin. Wochenschr., 1883, No. 1); by Afanassiew, who in 1887 isolated a bacillus; by Ritter (Deutsche Med. Wochenschr., 1892, No. 45, p. 1020), who found in the bronchial secretion a diplococcus, and by Kurloff (Centralb. f. Bakteriologie, Vol. xix, Nos. 14 and 15), who isolated a ciliated ameba. It is still a matter of doubt which, if any, of these is the actual cause of the disease.
To these contributions to the subject another has been recently added by Czaplewski and Hensel (Deutsche Medicinische Wochenschrift, 1897, No. 37, p. 586), who describe the isolation of bacilli corresponding in some respects with those observed by Burger. The observations were made with fresh sputum,
THE BACTERIOLOGY OF WHOOPING COUGH.. JAMA. 1897;XXIX(18):919–920. doi:10.1001/jama.1897.02440440045007