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Review
. 2003 Aug;52(2):159-61.
doi: 10.1093/jac/dkg313. Epub 2003 Jul 1.

The European ban on growth-promoting antibiotics and emerging consequences for human and animal health

Mark Casewell  1 , Christian Friis, Enric Marco, Paul McMullin, Ian Phillips
Affiliations
Review

The European ban on growth-promoting antibiotics and emerging consequences for human and animal health

Mark Casewell et al. J Antimicrob Chemother. 2003 Aug.

Abstract

Following the ban of all food animal growth-promoting antibiotics by Sweden in 1986, the European Union banned avoparcin in 1997 and bacitracin, spiramycin, tylosin and virginiamycin in 1999. Three years later, the only attributable effect in humans has been a diminution in acquired resistance in enterococci isolated from human faecal carriers. There has been an increase in human infection from vancomycin-resistant enterococci in Europe, probably related to the increased in usage of vancomycin for the treatment of methicillin-resistant staphylococci. The ban of growth promoters has, however, revealed that these agents had important prophylactic activity and their withdrawal is now associated with a deterioration in animal health, including increased diarrhoea, weight loss and mortality due to Escherichia coli and Lawsonia intracellularis in early post-weaning pigs, and clostridial necrotic enteritis in broilers. A directly attributable effect of these infections is the increase in usage of therapeutic antibiotics in food animals, including that of tetracycline, aminoglycosides, trimethoprim/sulphonamide, macrolides and lincosamides, all of which are of direct importance in human medicine. The theoretical and political benefit of the widespread ban of growth promoters needs to be more carefully weighed against the increasingly apparent adverse consequences.

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