Globally, an estimated 50% of all antimicrobials serve veterinary purposes.
Bacteria that inevitably develop antibiotic resistance in animals comprise
food-borne pathogens, opportunistic pathogens and commensal bacteria. The
same antibiotic resistance genes and gene transfer mechanisms can be found
in the microfloras of animals and humans. Direct contact, food and water li
nk animal and human habitats. The accumulation of resistant bacteria by the
use of antibiotics in agriculture and veterinary medicine and the spread o
f such bacteria via agriculture and direct contamination are documented.