Chloramphenicol-resistant Salmonella newport traced through hamburger to dairy farms.
D000818:Animals; D002140:California; D002417:Cattle; D002701:Chloramphenicol / Q000494:pharmacology*; D003612:Dairying; D004352:Drug Resistance, Microbial; D005516:Food Microbiology; D008460:Meat; D012475:Salmonella / Q000187:drug effects / Q000302:isolation & purification*
D002701:Chloramphenicol