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Virulence factors of Escherichia coli isolated from bovine clinical mastitis
Abstract
Escherichia coli isolates from bovine mastitis were examined for a selection of virulence factors. The strains originated from Finland and Israel, which have differences in the proportion of mastitis caused by E. coli, clinical pictures of coliform mastitis, environmental conditions and herd management. The genes of nine virulence factors were detected by polymerase chain reaction. Presence of K1 and K5 capsules was assessed by use of specific bacteriophages. Serum resistance was tested by a turbidimetric assay. Out of 160 Finnish isolates, 37% had traT, 14% cnf2, 8% cnf1, 11% aer, 9% f17, 8% sfa, 7% pap, 1% afa8D and 1% afa8E. Out of 113 Israeli isolates, 41% had traT, 4% aer, 3% cnf2, 1% cnf1, 1% sfa and 1% f17. Some of the genes were distributed among two major pathotype groups, with either f17 family or sfa, pap and cnf1 as major determinants. Genes for F17a, CS31A, Afa7D and Afa7E were not detected. Altogether 49% of Finnish and 42% of Israeli isolates had at least one virulence gene, but genes other than traT were present in only 24% of Finnish and 5% of Israeli isolates. Serum resistance was more common among Finnish (94/160) than Israeli isolates (19/113). K1 and K5 capsules were not detected.
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Resistance to the bactericidal activity of serum is a virulence factor common to many coliform bacteria causing clinical mastitis, but is not a prerequisite for pathogenicity.
“Resistance to the bactericidal activity of serum is a virulence factor common to many coliform bacteria causing clinical mastitis, but is not a prerequisite for pathogenicity [14, 26, 36, 52].”
From Coliform mastitis (2003) · cites this paper as [36]
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Fang, W., & Pyörälä, S. (1996) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(96)76336-1 · Cited by 60
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Research works printed but not linked: 28
- Barrow, 1989, The virulence characteristics of strains of Escherichia coli isolated from cases of bovine mastitis in England and Wales, Vet. Microbiol., 20, 35, 10.1016/0378-1135(89)90005-9 · DOI
- Bertin, 1996, Rapid and specific detection of F17-related pilin and adhesion genes in diarrhoeic and septicaemic Escherichia coli strains by multiplex PCR, J. Clin. Microbiol., 34, 2921, 10.1128/JCM.34.12.2921-2928.1996 · DOI
- Bertin, 1998, Association of genes encoding P fimbriae, CS31A antigen and EAST 1 toxin among CNF1-producing Escherichia coli strains from cattle with septicaemia and diarrhoea, FEMS Microbiol. Lett., 162, 235, 10.1111/j.1574-6968.1998.tb13004.x · DOI
- Burns, 1996, CNF producing Escherichia coli isolated from cattle in Northern Ireland, Vet. Microbiol., 49, 235, 10.1016/0378-1135(95)00196-4 · DOI
- Carroll, 1977, Bactericidal activity of standard bovine serum against coliform bacteria isolated from udders and the environment of dairy cows, Am. J. Vet. Res., 38, 2019
- Eberhart, 1984, Coliform mastitis, Vet. Clin. North. Am., 6, 287
- Hogan, 1990, Haemagglutination and hemolysis by Escherichia coli isolated from bovine intramammary infections, J. Dairy Sci., 73, 3126, 10.3168/jds.S0022-0302(90)79001-7 · DOI
- Lalioui, 1999, Molecular cloning and characterization of the afa-7 and afa-8 gene clusters encoding afimbrial adhesions in Escherichia coli strains associated with diarrhoea or septicaemia in calves, Infect. Immun., 67, 5048, 10.1128/IAI.67.10.5048-5059.1999 · DOI
- Lam, T.J.G.M., 1996. Dynamics of bovine mastitis: a field study in low somatic cell count herds. Faculteit Diergeneeskunde, Universiteit Utrecht, Utrecht, pp. 147–171.
- Le Bouguenec, 1999, AFA and F17 adhesions produced by pathogenic Escherichia coli strains in domestic animals, Vet. Res., 30, 317
- Lipman, 1995, Isolation and identification of fimbriae and toxin production by Escherichia coli strains from cows with clinical mastitis, Vet. Microbiol., 47, 1, 10.1016/0378-1135(95)00108-M · DOI · Paper page
- Mainil, 1997, Presence of pap-, sfa-, and afa-related sequences in necrotoxigenic Escherichia coli isolates from cattle: evidence for new variants of the AFA family, Can. J. Vet. Res., 61, 193
- Mainil, 1999, Comparison of necrotoxigenic Escherichia coli isolates from farm animals and from humans, Vet. Microbiol., 70, 123, 10.1016/S0378-1135(99)00134-0 · DOI
- Mäkelä, P.H., 1985. The use of bacteriophages and bacteriocins in the study of bacterial cell surface structures. In: Korhonen, T.K., Dawes, E.A., Mäkelä, P.H. (Eds.), Enterobacterial Surface Antigenes: Methods for Molecular Characterisation. Elsevier, Amsterdam, pp. 155–178.
- Nemeth, 1991, Serum resistance and the traT gene in bovine mastitis-causing Escherichia coli, Vet. Microbiol., 28, 343, 10.1016/0378-1135(91)90069-R · DOI
- Nemeth, 1994, In vitro comparison of bovine mastitis and faecal Escherichia coli isolates, Vet. Microbiol., 40, 231, 10.1016/0378-1135(94)90112-0 · DOI
- Olling, S., 1977. Sensitivity of gram-negative bacilli to the serum bactericidal activity: a marker of the host–parasite relationship in acute and persisting infections. Scand. J. Infect. Dis. (Suppl.) 10, 1–40. · DOI
- Pelkonen, 1987, A rapid turbidimetric assay for the study of serum sensitivity of Escherichia coli, FEMS Microbiol., 42, 53, 10.1111/j.1574-6968.1987.tb02298.x · DOI
- Pfaff-McDonough, 2000, Complement resistance-related traits among Escherichia coli isolates from apparently healthy birds and birds with colibacillosis, Avian Dis., 44, 23, 10.2307/1592504 · DOI
- Pohl, 1995, F17 positive Escherichia coli, Vet. Rec., 137, 623
- Pohl, 1993, Escherichia coli producing CNF1 and CNF2 cytotoxins in animals with different disorders, Vet. Res., 24, 311
- Pramoonjago, 1992, Role of TraT protein, an anticomplementary protein produced in Escherichia coli by R100 factor, in serum resistance, J. Immunol., 148, 827, 10.4049/jimmunol.148.3.827 · DOI
- Pyörälä, 1998, Efficacy of parenteral administration of three antimicrobial agents in treatment of clinical mastitis in lactating cows: 487 cases (1989–1995), J. Am. Vet. Med. Assoc., 212, 407, 10.2460/javma.1998.212.03.407 · DOI
- Sanchez-Carlo, 1984, Virulence factors of Escherichia coli isolated from cows with acute mastitis, Am. J. Vet. Res., 45, 1775
- Sandholm, M., Pyörälä, S., 1995. Coliform mastitis, endotoxin mastitis–endotoxin shock. In: Sandholm, M., Honkanen-Buzalski, T., Kaartinen, L., Pyörälä, S. (Eds.), The Bovine Udder and Mastitis. Gummerus, Jyväskylä, pp. 149–160.
- Shpigel, 1998, Clinical, bacteriological and epidemiological aspects of clinical mastitis in Israeli dairy herds, Prev. Vet. Med., 35, 1, 10.1016/S0167-5877(98)00052-X · DOI
- Valente, 1988, Studies on virulence factors of Escherichia coli isolated from cows with acute mastitis, Arch. Vet. Ital., 39, 254
- Yamamoto, 1995, Detection of urovirulence factors in Escherichia coli by multiplex polymerase chain reaction, FEMS Immunol. Med. Microbiol., 12, 85, 10.1111/j.1574-695X.1995.tb00179.x · DOI
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Sorted by citations
Hogan, J., & Larry Smith, K. (2003) · Veterinary Research · doi:10.1051/vetres:2003022 · Cited by 245
Metadata
- Authors
- Kaipainen, T., Pohjanvirta, T., Shpigel, N. Y., Shwimmer, A., Pyörälä, S., & Pelkonen, S.
- Affiliations
- University of Helsinki (FI)
- Hebrew University of Jerusalem (IL)
- Corresponding author
- Kaipainen, T.
- Venue
- Veterinary Microbiology
- Publisher
- Elsevier BV
- Published
- 2002-02
- Volume
- 85
- Issue
- 1
- Pages
- 37-46
- ISSN
- 0378-1135 (ISSN-L)
- OpenAlex
- W2078391941
- Cited by
- 83
- References
- 1
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 6 · 2021: 2 · 2020: 6 · 2019: 6 · 2018: 2 · 2017: 7 · 2016: 2 · 2015: 2 · 2014: 4 · 2013: 1 · 2012: 3
- FWCI
- 1.88
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Veterinary Microbiology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Valio
- Topics
- Life Sciences › Immunology and Microbiology › Microbiology › Escherichia coli research studies
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Milk Quality and Mastitis in Dairy Cows
- Life Sciences › Immunology and Microbiology › Microbiology › Microbial infections and disease research
- Keywords
- Escherichia coli, bovine mastitis, virulence factors, coliform mastitis, traT, cytotoxic necrotizing factor 1, sFas, PAP, serum resistance, K1 capsule
- MeSH terms
- Pancreatitis-Associated Proteins, Animals, Bacterial Outer Membrane Proteins, Base Sequence, Blood Bactericidal Activity, Cattle, Escherichia coli, Finland, Genes, Bacterial, Israel, Mastitis, Bovine, Nephelometry and Turbidimetry, Virulence, Polymerase Chain Reaction, Bacterial Capsules, DNA Primers, Escherichia coli Proteins
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