Should colistin be banned for pigs?

Colistin has become the antibiotic of last resort in certain circumstances in human medicine, after 40 years of animal health use – should it be banned in animals and only reserved for human use? That is the conundrum, writes pig health expert David Burch. Should colistin be banned in animals? This is a difficult question but such a proposal is being put forward by various lobbying and medical groups. In veterinary medicine, colistin has been used mainly by the oral route in feed and in drink