[Comparative study of adherence to rabbit enterocytes, presence of colonization factors CFA/I and CFA/II and toxinogenesis of 55 strains of Escherichia coli].
Fifty-five strains of Escherichia coli isolated from 51 faeces of Melanesian children with acute diarrhoea in New Caledonia were studied; three diarrhoeas were bloody. For each strain, haemagglutination type, adhesion to rabbit enterocytes, serotype, production of heat-labile (LT) or heat-stable (ST) toxins and identification of colonization factor antigens CFA/I or CFA/II were determined. We identified 48 strains able to attach to rabbit enterocytes; 27 produced enterotoxins (21 strains LT+ and 6 ST+) and 19 had CFA (13 CFA/I and 6 CFA/II). Five serotypes were identified: O6, O78, O80, O114 and O127:B8. One strain, O127:B8, which was able to attach to enterocytes, had CFA/I and produced LT toxin.
D000268:Adhesiveness; D000372:Agglutination Tests; D000818:Animals; D000942:Antigens, Bacterial / Q000032:analysis*; D001427:Bacterial Toxins / Q000096:biosynthesis*; D002648:Child; D003967:Diarrhea / Q000382:microbiology; D004768:Enterotoxins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000145:classification / Q000276:immunology / Q000472:pathogenicity*; D029968:Escherichia coli Proteins; D036781:Fimbriae Proteins; D006386:Hemagglutination Tests; D006801:Humans; D007413:Intestinal Mucosa / Q000382:microbiology*; D011817:Rabbits; D012703:Serotyping
D000942:Antigens, Bacterial; D001427:Bacterial Toxins; D004768:Enterotoxins; D029968:Escherichia coli Proteins; C022924:colonization factor antigens; C034151:heat stable toxin (E coli); D036781:Fimbriae Proteins; C027538:heat-labile enterotoxin, E coli
Etude comparative entre l'adhérence aux entérocytes de lapins, la présence des facteurs de colonisation CFA/I et CFA/II et la toxinogénie de 55 souches de Escherichia coli.