Colistin resistant E. coli

The mcr-1 and mcr-3 positive E. coli isolates from pigs and pig farm environment from longitudinal survey of the representative pig farm in the central area of Thailand. The longitudinal monitoring of the representative pig farm for 3 years where was reported as mcr-1 gene positive in workers, pig carriages and environment. According to the farm history, the farm had voluntarily banned colistin sulfate as a feed additive since the beginning of 2017. However, the cessation in use of colistin in the farm could not assure that the pig carriages would lack the resistant genes. Thus, to follow up mcr genes detection in pigs, workers and environment in that farm could be helpful in term of policy and management beneath one health concept.