... definitely the case for tetracycline, ampicillin, and sulfa drug use in both countries, and ceftiofur and apramycin use in Canada, and enrofloxacin use in Vietnam Frequent usage of agents in the ... disease) in 2007 and submitted to the NIVR in Vietnam or the FMV in Québec, Canada, were initially tested by PCR for the presence of defining genes of ETEC and STEC pathotypes They were then virotyped ... Brereton L, Brown G, Fairbrother JM 2002 Avian Dis 46:143-152 COMPARISON OF THE ANTIMICROBIAL RESISTANCE OF PATHOGENIC ESCHERICHIA COLI IN DISEASED PIGS IN VIETNAM AND QUEBEC, CANADA Thuy, N Do1; Darren...