title: Effect of tetracycline upon transfer of an R plasmid from calves to human beings.
abstract: Fecal specimens from human subjects in daily contact with calves shedding Escherichia coli containing an R plasmid were analyzed for the presence of E coli and the plasmid. A low level of crossover was found to occur unrelated to whether or not the calves were receiving tetracycline.
mesh_terms: D000328:Adult; D000818:Animals; D002417:Cattle / Q000382:microbiology*; D004926:Escherichia coli / Q000187:drug effects* / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006801:Humans; D008297:Male; D010957:Plasmids; D011815:R Factors; D013752:Tetracycline / Q000494:pharmacology*
chemical_list: D013752:Tetracycline