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Drug Resistance and R Factors in the Bowel Bacteria of London Patients before and after Admission to Hospital

Br Med J 1969; 2 doi: (Published 17 May 1969) Cite this as: Br Med J 1969;2:407
  1. Naomi Datta


    The content of drug-resistant coliform bacteria in faecal specimens collected before admission from patients awaiting non-urgent surgery were compared with specimens collected in hospital. Resistant strains of Escherichia coli were isolated from 52% of preadmission specimens and were present in large numbers in 28%. Tetracycline, sulphonamide, and streptomycin resistance were commonest: 60% of resistant strains carried transmissible R factors and multiple resistance was commoner than single. No characteristically resistant intestinal bacteria of any genera were found in hospital specimens as compared with those from outside.