Corrigendum: Occurrence and Characterization of mcr-1-Positive Escherichia coli Isolated From Food-Producing Animals in Poland, 2011–2016 - Zając, Magdalena; Sztromwasser, Paweł; Bortolaia, Valeria; Leekitcharoenphon, Pimlapas; Cavaco, Lina M.; Ziȩtek-Barszcz, Anna; Hendriksen, Rene S.; Wasyl, Dariusz (Frontiers in Microbiology, 2019)