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Cytotoxins in non-enterotoxigenic strains of Escherichia coli isolated from feces of diarrheic calves.
TLDR
Seroneutralization assays showed that cytotoxins of the same type were closely related antigenically and a slight cross-neutralization was observed between Type 1 (CNF) and Type 2 (Vir) toxins. Expand
Evidence for two types of cytotoxic necrotizing factor in human and animal clinical isolates of Escherichia coli
TLDR
The original toxic properties of these recently recognized categories of E. coli strains, together with their association with enteritis and septicemia, suggest that these strains may play a significant role in pathology. Expand
Genetic parameters for resistance to the Salmonella abortusovis vaccinal strain Rv6 in sheep
TLDR
In sheep as well as in other species, the determinism of resistance to Salmonella infection is under genetic control and the correlations between the traits are in agreement with the known immune mechanisms. Expand
Cross-protection of Salmonella abortusovis, S. choleraesuis, S. dublin and S. gallinarum in mice induced by S. abortusovis and S. gallinarum: bacteriology and humoral immune response.
TLDR
The negative linkage between a number of bacteria in the spleen of mice challenged with Gallinarum and Dublin, and the level of IgM and IgG antibodies specific for the challenging serotype, showed that humoral immune response could be one element of cross-protection, mainly by the immune response against the same O serotype. Expand
Detection of Escherichia coli strains producing cytotoxic necrotizing factor type two (CNF2) by enzyme-linked immunosorbent assay.
TLDR
An enzyme-linked immunosorbent assay (ELISA) was developed to detect clinical isolates of E. coli producing CNF2, and offers a good alternative to the HeLa cell culture assay for the detection of C NF2-producing strains where facilities for and experience with cell cultures is lacking. Expand
Cytotoxic effect of multinucleation in HeLa cell cultures associated with the presence of Vir plasmid in Escherichia coli strains.
TLDR
The Vir cytopathic effect appeared morphologically distinct from the one caused by the cytotoxic necrotizing factor of E. coli, which was partially related immunologically, and it is proposed to call this type of toxin 'Vir cytotoxin'. Expand
An in vivo assay for the detection of cytotoxic strains of Escherichia coli.
TLDR
The mouse footpad test therefore provides an in vivo assay for the differential diagnosis of cytotoxic strains of E. coli. Expand
Quantitative trait loci for resistance to infection in sheep using a live Salmonella Abortusovis vaccine.
TLDR
Quantitative trait loci mapping for susceptibility to a Salmonella Abortusovis vaccinal strain was performed using an experimental design involving 30 Romane sheep sire families, and Surprisingly, none was found to be significant in the SLC11A1 region (formerly NRAMP1) that has been shown to influenceSalmonella susceptibility in other species. Expand
Cytokine gene expression in lymph node and spleen of sheep in response to Salmonella infection by two serotypes displaying different host specificity.
TLDR
The intensity of inflammatory and anti-infectious cytokine responses, but not the type 2 cytokine response, is serotype-dependent, suggesting that the host-specific serotype, by limiting the host cytokine-mediated defence, could favour its persistence within lymphoid organs. Expand
[Demonstration of strains of Escherichia coli with septicemic characteristics in the feces of calves with mucoid enteritis].
TLDR
Observations suggest that bacteriemic E. coli with adhesive properties could be responsible for mucoid enteritis in calves, a field study on neonatal diarrhea of calves. Expand
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