Disposal of Residues
Antibiotic therapy inevitably results in antibiotic residues that enter the environment e.g. via manure that is used to fertilize fields. These residues can cause antibiotic resistance selection or spread in environmental bacteria, even at very low concentrations. These environmental bacteria are then able to transfer their resistance to pathogenic bacteria.
Waste that is contaminated with antibiotic residues (faeces, bedding, milk etc.) should be isolated, collected and treated to inactivate the antibiotics before disposal.