Although there was an increasing trend of NTS in proportion of resistance to fluoroquinolone over the three surveillance rounds, there was a significant decreasing trend of NTS in proportion of resistance to polymyxin.
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Antimicrobial Resistance Pilot Surveillance of Pigs and Chickens in Vietnam, 2017-2019.
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The sentences
However, there was a decreasing trend of E. coli and NTS resistance to macrolide and polymyxin, shown by both regression and trend analysis, after the 2018 ban of antimicrobial growth promoters.