Molecular epidemiology of antimicrobial resistance among Salmonella enterica serovar Infantis from poultry in Kagoshima, Japan

Antimicrobial susceptibility and resistance genes of 135 strains of Salmonella enterica serovar Infantis isolated from poultry in Kagoshima were examined. One strain (0.7%) was resistant to ampicillin (A), 97% to streptomycin (S), 95.6% to sulphamethoxazole (Su), 96.3% to oxytetracycline (T), 11.1%...

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Bibliographic Details
Published in:	International journal of antimicrobial agents Vol. 28; no. 4; pp. 302 - 307
Main Authors:	Shahada, Francis, Chuma, Takehisa, Tobata, Takayuki, Okamoto, Karoku, Sueyoshi, Masuo, Takase, Kozo
Format:	Journal Article
Language:	English
Published:	London Elsevier B.V 01-10-2006 Amsterdam Elsevier New York, NY
Subjects:	Animals Anti-Bacterial Agents - pharmacology Antibiotics. Antiinfectious agents. Antiparasitic agents Antimicrobial resistance Bacterial diseases Bacterial diseases of the digestive system and abdomen Biological and medical sciences Drug Resistance, Multiple, Bacterial - genetics Human bacterial diseases Infectious diseases Integrases - genetics Japan - epidemiology Medical sciences Microbial Sensitivity Tests Molecular Epidemiology Pharmacology. Drug treatments Poultry - microbiology Resistance genes Salmonella enterica Salmonella enterica - classification Salmonella enterica - drug effects Salmonella enterica - genetics Salmonella enterica serovar Infantis Salmonella Infections, Animal - epidemiology Salmonella Infections, Animal - microbiology TEM-type β-lactamase Asia Japan TEM-type β-lactamase Antimicrobial resistance Salmonella enterica serovar Infantis Resistance genes Salmonella Drug susceptibility test Enzyme Poultry Genotype β-Lactamase Antimicrobial agent Infection Resistance Transmission electron microscopy Gene Bacteriosis Molecular epidemiology Bacteria Hydrolases Genetics Salmonellosis Serotype Veterinary Enterobacteriaceae
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Summary:	Antimicrobial susceptibility and resistance genes of 135 strains of Salmonella enterica serovar Infantis isolated from poultry in Kagoshima were examined. One strain (0.7%) was resistant to ampicillin (A), 97% to streptomycin (S), 95.6% to sulphamethoxazole (Su), 96.3% to oxytetracycline (T), 11.1% to kanamycin (Km) and 36.3% to ofloxacin (O). Multiresistant phenotypes identified were ASSuT-Km, SSuT-Km, SSuT-O and SSuT. Class 1 integrons were detected in 94.8% of isolates. Approximately 89% of oxytetracycline-resistant strains carried the tetA gene and all of the 131 streptomycin-resistant isolates carried the aadA1a gene. Forty-percent of kanamycin-resistant isolates carried the aphA1-Iab gene. All isolates were susceptible to chloramphenicol. Recognition of TEM-type β-lactamase in a S. Infantis strain from chickens is a recent rare finding in Japan.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0924-8579 1872-7913
DOI:	10.1016/j.ijantimicag.2006.07.003