Benefits and microbiological risks of feed additive antibiotics
1999
Bywater, R.J. (Fédération Européenne de Fabricants d'Additifs pour la Nutrition Animale, Bruxelles (Belgium))
Antimicrobial growth promoters have become widely used in most EU countries and elsewhere. They act on micro-organisms within the intestine to increase growth and efficiency through permitting full use of dietary nutrients. The question of resulting antimicrobial resistance has been assessed at various points over the years. Such assessments have generally concluded that there were no demonstrable hazards to human health. However, concern has recently focused on resistance in Enterococcus faecium which sporadically causes disease in debilitated or immunosuppressed patients. In these patients, glycopeptides such as vancomycin are important, and the related feed additive compound avoparcin was suspended within the EU in April 1997, following evidence of resistance among isolates from animals, and fear that there might be a link with resistance in man.
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