title: Enterotoxigenicity of Staphylococcus intermedius strains isolated from dogs.
abstract: Dogs (n = 100) were examined for the presence of enterotoxigenic Staphylococcus intermedius. Enterotoxigenic strains were isolated from the nasal cavities of 43 (43.0%) out of 100 dogs. Of the 50 enterotoxigenic strains isolated, 23 (46.0%) produced enterotoxin A, 17 (34.0%) enterotoxins A and C, 8 (16.0%) enterotoxin C, and only two (4.0%) enterotoxins A and B. The amount of enterotoxin produced on semisolid brain heart infusion medium by the 17 enterotoxin A producing strains of S. intermedius was 10-160 ng per ml. Enterotoxin A production by S. intermedius strains was ony one tenth to one hundredth of that of S. aureus strains from staphylococcal food poisoning outbreaks.
mesh_terms: D000818:Animals; D001434:Bacteriophage Typing; D004285:Dogs / Q000382:microbiology*; D004768:Enterotoxins / Q000096:biosynthesis*; D007564:Japan; D009297:Nasal Mucosa / Q000382:microbiology; D012621:Seasons; D013210:Staphylococcus / Q000145:classification / Q000302:isolation & purification / Q000378:metabolism / Q000472:pathogenicity*; D013204:Staphylococcus Phages
chemical_list: D004768:Enterotoxins; C026066:enterotoxin A, Staphylococcal; C031818:enterotoxin B, staphylococcal; C034959:enterotoxin C, staphylococcal