... between Canada and Vietnam. This was 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. ... edema 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 ... Antimicrobial Canada (n=124) Vietnam (n=50) Ceftiofur 5 0 Ampicillin 67 42 Apramycin 12 0 Spectinomycin 46 4 Gentamycin 7 14 Enrofloxacin 0 20 Florfenicol 12 32 Trim-Sulfa 48 82 Neomycin 23...