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The occurrence of bacilli of the Proteus type in certain infections of the urinary and gastro-intestinal tracts, their curious and still unexplained relation to typhus fever, and their possible connection with some outbreaks of food poisoning make them of some, if minor, interest in human pathology. Several important investigations of this group have appeared, notably those of Hauser, Glenn, Bengtson, and Wenner and Rettger. Moltke's monograph, however, is a more extensive study than any of its predecessors and will probably rank for some time as the indispensable reference work on these organisms. The critical selection of suitable methods and the skill with which these were applied to the study of 171 strains give to the Proteus group a well characterized unity which in the hands of less thoroughgoing experimenters it has not always proved.
Contributions to the Characterization and Systematic Classification of Bac. Proteus Vulgaris (Hauser).. JAMA. 1928;91(17):1311. doi:10.1001/jama.1928.02700170075042