Shedding of Escherichia coli O157:H7 in Calves Is Reduced by Prior Colonization with the Homologous Strain

Enterohemorrhagic Escherichia coli O157:H7 has a natural reservoir in the intestinal tracts of cattle. Colonization is asymptomatic and transient, but it is not clear if protective immunity is induced. This study demonstrates that prior colonization induces humoral immune responses to bacterial anti...

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Veröffentlicht in:	Applied and Environmental Microbiology 2007-06, Vol.73 (11), p.3765-3767
Hauptverfasser:	Naylor, Stuart W, Flockhart, Allen, Nart, Pablo, Smith, David G.E, Huntley, John, Gally, David L, Low, J. Christopher
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Antibodies, Bacterial - blood Biological and medical sciences Cattle Cattle Diseases - immunology Cattle Diseases - microbiology Enzyme-Linked Immunosorbent Assay Escherichia coli Escherichia coli Infections - immunology Escherichia coli Infections - microbiology Escherichia coli Infections - veterinary Escherichia coli O157 - immunology Escherichia coli O157 - isolation & purification Feces - microbiology Fundamental and applied biological sciences. Psychology Immunoglobulin A - blood Immunoglobulin G - blood Microbiology Public Health Microbiology
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Beschreibung
Zusammenfassung:	Enterohemorrhagic Escherichia coli O157:H7 has a natural reservoir in the intestinal tracts of cattle. Colonization is asymptomatic and transient, but it is not clear if protective immunity is induced. This study demonstrates that prior colonization induces humoral immune responses to bacterial antigens and reduces bacterial shedding after experimental challenge with the homologous strain.
ISSN:	0099-2240 1098-5336
DOI:	10.1128/AEM.02670-06