Origin and characterization of Salmonella isolated from pig farms and pig slaughterhouses in Chiang Mai and Lamphun provinces.

aAbbreviations in this column: mesenteric lymphnode (mesen LN); before operation (bef); after operation (aft).bAbbreviations in this column: Chiang Mai province (CM); Lamphun province (LP).cAntibiotic abbreviations: ampicillin (AMP); amoxicillin-clavulanic acid, (AUG); Chloramphenicol (C); Ciprofloxacin (CIP); Cefotaxime (CTX); Nalidixic acid (NA); Norfloxacin (NOR); Streptomycin (S); Sulfamethoxazole-Trimethoprim (SXT); Tetracycline (TE).Origin and characterization of Salmonella isolated from pig farms and pig slaughterhouses in Chiang Mai and Lamphun provinces.