摘要：A successful surveillance program for antibiotic resistant Escherichia coli in Australia should accountfor the heterogenous nature of the food-animal population. Studies that rely on measurements madeon several hundred isolates can only satisfy limited objectives because they risk imprecise and biasedestimation of the presence and distribution of resistance traits. Observations on a larger number ofisolates are needed to ensure animal, herd and region effects are adequately represented so thatfindings can be extrapolated to the appropriate population of interest. An efficient methodology formeasuring the resistance traits of a large number of isolates is described
