Abstract
Bacterial enumeration, histologic examination, and immunoperoxidase staining demonstrated the ability of an Escherichia coli strain associated with hemorrhagic colitis (serotype O157:H7) to colonize chicken cecae for up to 90 days postinoculation after a peroral challenge at 1 day of age. The bacteria induced mild, transient, mucous membrane damage confined to the proximal cecae of healthy, normal-appearing chickens, principally at 14 to 28 days postinoculation. Attachment, effacement, and penetration of the cecal surface epithelium by E. coli O157:H7 were observed. With the exception of splenic, hepatic, and cecal tonsil immune-related changes and cecal damage and colonization, no other organ systems or portions of the gastrointestinal tract were affected by the bacteria. Bacterial counts indicated that E. coli O157:H7 was predominantly present in the cecae (often at levels greater than 10(6) CFU/g of tissue and contents) and to a lesser extent in the colon. Our results suggest that E. coli O157:H7 colonizes chicken cecae and is passed through the colon with fecal excrement. The ability of this organism to colonize chicken cecae indicates that chickens may serve as hosts and possibly as reservoirs for E. coli O157:H7.
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Selected References
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- Casanova S., Donini U., Zini N., Morelli R., Zucchelli P. Immunohistochemical staining on hydroxyethyl-methacrylate-embedded tissues. J Histochem Cytochem. 1983 Aug;31(8):1000–1004. doi: 10.1177/31.8.6345656. [DOI] [PubMed] [Google Scholar]
- Graham R. C., Jr, Karnovsky M. J. The early stages of absorption of injected horseradish peroxidase in the proximal tubules of mouse kidney: ultrastructural cytochemistry by a new technique. J Histochem Cytochem. 1966 Apr;14(4):291–302. doi: 10.1177/14.4.291. [DOI] [PubMed] [Google Scholar]
- Johnson W. M., Lior H., Bezanson G. S. Cytotoxic Escherichia coli O157:H7 associated with haemorrhagic colitis in Canada. Lancet. 1983 Jan 1;1(8314-5):76–76. doi: 10.1016/s0140-6736(83)91616-1. [DOI] [PubMed] [Google Scholar]
- Moon H. W., Whipp S. C., Argenzio R. A., Levine M. M., Giannella R. A. Attaching and effacing activities of rabbit and human enteropathogenic Escherichia coli in pig and rabbit intestines. Infect Immun. 1983 Sep;41(3):1340–1351. doi: 10.1128/iai.41.3.1340-1351.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- O'Brien A. D., Lively T. A., Chang T. W., Gorbach S. L. Purification of Shigella dysenteriae 1 (Shiga)-like toxin from Escherichia coli O157:H7 strain associated with haemorrhagic colitis. Lancet. 1983 Sep 3;2(8349):573–573. doi: 10.1016/s0140-6736(83)90601-3. [DOI] [PubMed] [Google Scholar]
- O'Brien A. O., Lively T. A., Chen M. E., Rothman S. W., Formal S. B. Escherichia coli O157:H7 strains associated with haemorrhagic colitis in the United States produce a Shigella dysenteriae 1 (SHIGA) like cytotoxin. Lancet. 1983 Mar 26;1(8326 Pt 1):702–702. doi: 10.1016/s0140-6736(83)91987-6. [DOI] [PubMed] [Google Scholar]
- Riley L. W., Remis R. S., Helgerson S. D., McGee H. B., Wells J. G., Davis B. R., Hebert R. J., Olcott E. S., Johnson L. M., Hargrett N. T. Hemorrhagic colitis associated with a rare Escherichia coli serotype. N Engl J Med. 1983 Mar 24;308(12):681–685. doi: 10.1056/NEJM198303243081203. [DOI] [PubMed] [Google Scholar]
- Straus W. Imidazole increases the sensitivity of the cytochemical reaction for peroxidase with diaminobenzidine at a neutral pH. J Histochem Cytochem. 1982 May;30(5):491–493. doi: 10.1177/30.5.6176617. [DOI] [PubMed] [Google Scholar]
- Wells J. G., Davis B. R., Wachsmuth I. K., Riley L. W., Remis R. S., Sokolow R., Morris G. K. Laboratory investigation of hemorrhagic colitis outbreaks associated with a rare Escherichia coli serotype. J Clin Microbiol. 1983 Sep;18(3):512–520. doi: 10.1128/jcm.18.3.512-520.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]