A study of the incidence of antibiotic resistant fecal Escherichia coli in children from an urban ghetto and a private practice indicated that a higher proportion of resistant E coli (65%) was obtained from the ghetto population compared to 51% of private patients. Ampicillin resistance was most common in both populations but significantly greater in the ghetto (51% vs 31%). Transmissible resistance factors were demonstrated in 73% of the resistant strains from ghetto children and 25% from children of upper socioeconomic background.
Neu HC, Cherubin C, Vogt M, Huber P, Glazer S, Winter H. Antibiotic Resistance of Fecal Escherichia coli: A Comparison of Samples From Children of Low and High Socioeconomic Groups. Am J Dis Child. 1973;126(2):174–177. doi:10.1001/archpedi.1973.02110190152008
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