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Titolo:
Prevalence of antimicrobial resistance in Salmonellae isolated from market-age swine
Autore:
Farrington, LA; Harvey, RB; Buckley, SA; Droleskey, RE; Nisbet, DJ; Inskip, PD;
Indirizzi:
ARS, USDA, So Plains Agr Res Ctr, College Stn, TX 77845 USA ARS College Stn TX USA 77845 lains Agr Res Ctr, College Stn, TX 77845 USA Texas A&M Univ, Coll Vet Med, Dept Vet Anat & Publ Hlth, College Stn, TX 77843 USA Texas A&M Univ College Stn TX USA 77843 l Hlth, College Stn, TX 77843 USA
Titolo Testata:
JOURNAL OF FOOD PROTECTION
fascicolo: 10, volume: 64, anno: 2001,
pagine: 1496 - 1502
SICI:
0362-028X(200110)64:10<1496:POARIS>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNITED-STATES; ANTIBIOTIC-RESISTANCE; INFECTIONS; EMERGENCE; BACTERIA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Harvey, RB ARS, USDA, So Plains Agr Res Ctr, College Stn, TX 77845 USA ARS College Stn TX USA 77845 es Ctr, College Stn, TX 77845 USA
Citazione:
L.A. Farrington et al., "Prevalence of antimicrobial resistance in Salmonellae isolated from market-age swine", J FOOD PROT, 64(10), 2001, pp. 1496-1502

Abstract

Antimicrobial resistance levels were examined for 365 Salmonella isolates recovered from the lymph nodes (n = 224) and cecal contents (n = 141) of market-age swine at slaughter. Antimicrobial resistance testing was performedby disk diffusion using 13 antibiotics common in the treatment of disease in human and veterinary medicine. Although none of the antibiotics tested were used subtherapeutically within the last 5 years on the farms sampled, resistance to chlortetracycline, penicillin G, streptomycin, and sulfisoxazole was common. Penicillin G resistance was significantly more frequent (P =0.03) and sulfisoxazole resistance was significantly less frequent (P < 0.01) in lymph node versus cecal isolates. Multidrug resistance was observed among 94.7% of the lymph node isolates and 93.5% of the cecal isolates. Themost frequent multidrug resistance pattern included three antibiotics-penicillin G, streptomycin, and chlortetracycline. Isolates in somatic serogroup 13, and more specifically, Salmonella Agona and Salmonella Schwarzengrundisolates, were often resistant to a greater number of antibiotics than were isolates in the other serogroups. Streptomycin, sulfisoxazole, ampicillin(lymph node isolates), and nitrofurantoin (cecal isolates) resistance levels differed significantly between somatic serogroups. The prevalence of penicillin G-, streptomycin-, and sulfisoxazole-resistant isolates differed significantly between serovars for both lymph node and cecal isolates. Results of this study suggest that a correlation exists between the somatic serogroup or serovar of a Salmonella isolate and its antimicrobial resistance status, which is specific to the antibiotic of interest and the source of theisolate (lymph node versus cecal contents).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/08/20 alle ore 08:16:17