One hundred and sixty-five strains of lactose-fermenting coliform organisms isolated from contaminated and infected urines have been studied, and an attempt has been made to derive from them a simple classification suitable for routine reporting.The need for such a simple but informative description based on the data available at the end of 24 hours is stressed, and the unsuitability of the Ministry of Health classification for this purpose is demonstrated.A routine method for reporting Bact.coli, atypical coli- form strains, and Bact.aerogenes is described, and the signifi- cance of this grouping in relation to the penicillin-and sulphonamide-sensitivity is discussed.No correlation between the type of organism and pathology of lesion, with the possible exception of purely obstruc- tive lesions, was found in this series.
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Macintyre et al. (1951) studied this question.