National surveillance of Salmonella enterica in food-producing animals in Japan.
A total of 518 fecal samples collected from 183 apparently healthy cattle, 180 pigs and 155 broilers throughout Japan in 1999 were examined to determine the prevalence and antimicrobial susceptibility of Salmonella. The isolation rates were 36.1% in broilers, 2.8% in pigs and 0.5% in cattle. S. enterica Infantis was the most frequent isolate, found in 22.6% of broiler fecal samples. Higher resistance rates were observed against oxytetracycline (82.0%), dihydrostreptomycin (77.9%), kanamycin (41.0%) and trimethoprim (35.2%). Resistance rates to ampicillin, ceftiofur, bicozamycin, chloramphenicol and nalidixic acid were <10%. CTX-M-2 beta-lactamase producing S. enterica Senftenberg was found in the isolates obtained from one broiler fecal sample. This is the first report of cephalosporin-resistant Salmonella directly isolated from food animal in Japan.
Ishihara
Kanako
K
National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan. kanako-i@rakuno.ac.jp
Takahashi
Toshio
T
Morioka
Ayako
A
Kojima
Akemi
A
Kijima
Mayumi
M
Asai
Tetsuo
T
Tamura
Yutaka
Y
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002417:Cattle / Q000382:microbiology; D002418:Cattle Diseases / Q000453:epidemiology / Q000382:microbiology; D002645:Chickens / Q000382:microbiology; D024881:Drug Resistance, Bacterial; D005243:Feces / Q000382:microbiology; D007564:Japan; D008460:Meat; D011201:Poultry Diseases / Q000453:epidemiology / Q000382:microbiology; D012481:Salmonella Infections, Animal / Q000453:epidemiology*; D019779:Salmonella enterica / Q000187:drug effects; D013552:Swine / Q000382:microbiology; D013553:Swine Diseases / Q000453:epidemiology / Q000382:microbiology
D000900:Anti-Bacterial Agents
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