國家衛生研究院 NHRI:Item 3990099045/1956

NHRI > National Institute of Infectious Diseases and Vaccinology > Tsai-Ling Yang Lauderdale > Periodical Articles > Item 3990099045/1956

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/1956

Title:	Effect of banning vancomycin analogue avoparcin on vancomycin-resistant enterococci in chicken farms in Taiwan
Authors:	Lauderdale, TL;Shiau, YR;Wang, HY;Lai, JF;Huang, IW;Chen, PC;Chen, HY;Lai, SS;Liu, YF;Ho, M
Contributors:	Division of Clinical Research
Abstract:	Avoparcin, a vancomycin analogue, was banned as a feed additive in Taiwan in 2000. A nationwide surveillance was conducted to study the prevalence of vancomycin-resistant enterococci (VRE) on chicken farms between 2000 and 2003. Among the 1021 E. faecalis and 967 E. faecium isolates studied, resistance to tetracycline, erythromycin, high-level aminoglycosides, ciprofloxacin and chloramphenicol either increased or remained high except vancomycin. The proportion of VRE decreased, between 2000 and 2003, from 13.7% (22/161) to 3.7% (11/299) for E. faecalis, and 3.4% (4/119) to 0% (0/300) for E. faecium. Only 8.8% (7/80) of the chicken farms surveyed harboured VRE in 2003 compared with 25% (15/60) in 2000. All VRE were resistant to tetracycline and erythromycin. All VRE possess the vanA gene but nearly all (79 of 83 isolates) were susceptible to teicoplanin, indicating VanB phenotype. Some clones were detected from different farms in various regions over the years. We conclude that the frequency of VRE in chicken farms decreased in association with a ban on avoparcin; and the continued presence of VRE may be due to the ability of some strains to persist in the farms, transfer of vancomycin resistance determinants or co-selection by the continued use of other antibiotics.
Keywords:	Microbiology
Date:	2007-03
Relation:	Environmental Microbiology. 2007 Mar;9(3):819-823.
Link to:	http://dx.doi.org/10.1111/j.1462-2920.2006.01189.x
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1462-2912&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000244078500024
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33846997895
Appears in Collections:	[Tsai-Ling Yang Lauderdale] Periodical Articles [Monto Ho(1997-2002)] Periodical Articles

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