1.Richards, WPC, Fraser, CM. Coliform enteritis of weaned pigs. A description of the disease and its association with hemolytic Escherichia coli. Cornell Vet 1961; 51: 245–57.
2.Sojka, WJ. In ‘Escherichia coli in domestic animals and poultry’, 1965. Commonwealth Agricultural Bureau, Weybridge, England.
3.Svendsen, J. Enteric Escherichia coli diseases in weaned pigs. Nord VetMed 1974: 26: 226–38.
4.Dam, A, Knox, B. Haemolytic Escherichia coli associated with enteritis and enterotoxaemia in pigs in Denmark, with particular reference to the rapid spread of serogroup O 149:K91. Nord VetMed 1974; 26: 219–25.
5.Bertschinger, HU, Jucker, H, Pfirter, HP. Control of Escherichia coli infection in weaned pigs by use of oral immunization combined with a diet low in nutrients. Fortschr VetMed 1979: 29: 73–81.
6.Smith, HW, Linggood, MA. Observations on the pathogenic properties of the K88. hly and ent plasmids of Escherichia coli with particular reference to porcine diarrhoea. J Med Microbiol 1971; 4: 467–85.
7.Selander, RK, Caugant, DA, Ochman, H, Musser, JM, Gilmour, MN, Whittam, TS. Methods of multilocus enzyme electrophoresis for bacterial population genetics and systematics. Appl Environ Microbiol 1986; 51: 873–84.
8.Nei, M. Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 1978; 89: 583–90.
9.Caugant, DA, Levin, BR, Orskov, I, Orskov, F, Eden, CS, Selander, RK. Genetic diversity in relation to serotype in Escherichia coli. Infect Immun 1985; 49: 407–13.
10.Sneath, PHA. Sakal, RR. Numerical taxonomy. San Francisco: CA: WH Freeman 1973: 573.
11.Selander, RK. Levin, BR. Genetic diversity and structure in Escherichia coli populations. Science 1980; 210: 545–7.
12.Kuhn, I. Franklin, A, Soderlind, O, Mollby, R. Phenotypic variations among enterotoxigenic Escherichia coli from Swedish piglets with diarrhoea. Med Microbiol Immunol 1985; 174: 119–30.
13.Vasenius, H. The influence of dietary carbohydrate on the multiplication and colonization of inoculated Escherichia coli strains in pigs intestines. II. Investigations in pigs at weaning age. Nord VetMed 1969: 21: 535–44.
14.Larsen, JL. Differences between enteropathogenic Escherichia coli strains isolates from neonatal E. coli diarrhoea (NCD) and postweaning diarrhoea (PWD) in pigs. Nord VetMed 1976: 28: 417–29.
15.Hoblet, KH, Kohler, EM. Saif, LH, Theil, KW, Ingalls, WL. Study of porcine post-weaning diarrhoea involving K88 (-) hemolytic Escherichia coli. Am J Vet Res 1986; 47: 1910–2.
16.Soderlind, O, Thafvelin, B, Mollby, R. Virulence factors in Escherichia coli strains isolated from Swedish piglets with diarrhea. J Clin Microbiol 1988; 26: 879–84.
17.Kennan, RM. Monckton, RP. Adhesive fimbriae associated with porcine enterotoxigenic Escherichia coli of the O 141 serotype. J Clin Microbiol 1990; 28: 2006–11.
18.Bertschinger, HU. Bachman, M, Mettler, C, et al. Adhesive fimbriae produced in vivo by Escherichia coli O 139:K12 (B):H1 associated with entertoxaemia in pigs. Vet Microbiol 1990: 25: 267–81.
19.Nagy, B. Casey, TA, Whipp, SC, Moon, HW. Susceptibility of porcine intestine to pilusmediated adhesion by some isolates of piliated enterotoxigenic Escherichia coli increases with age. Infect Immun 1992; 60: 1285–94.
20.Salajka, E. Salajkova, Z. Alexa, P, Hornich, M. Colonization factor different from K88, K99, F41 and 987P in enterotoxigenic Escherichia coli strains isolated from postweaning diarrhoea in pigs. Vet Microbiol 1992; 32: 163–75.