@article{mbs:/content/journal/jmm/10.1099/00222615-6-4-455, author = "Shaw, Elizabeth J. and Clark, A. D. and Anderson, Felicity M.", title = "R Factors In Enterobacteriaceae Causing Asymptomatic Bacteriuria Of Pregnancy", journal= "Journal of Medical Microbiology", year = "1973", volume = "6", number = "4", pages = "455-459", doi = "https://doi.org/10.1099/00222615-6-4-455", url = "https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-6-4-455", publisher = "Microbiology Society", issn = "1473-5644", type = "Journal Article", abstract = "SUMMARY The frequency of antibiotic resistance in coliform bacilli causing asymptomatic bacteriuria of pregnancy in two hospitals in West London was studied. Approximately one-fifth of the strains were resistant to at least one antibiotic. No increase in resistance was shown when these figures were compared with a previous study of symptomatic bacteriuria made in 1968–69, although both studies show an increase compared with figures obtained in 1962–63. In one-third of strains, resistance was shown to be mediated by R factors.", }