G. Leori

TL;DR: It is hoped that an appreciation of the differences that exist in the way these host-adapted serotypes of Salmonella interact with the host will lead to a greater understanding of the complex host–parasite relationship that characterizes salmonella infections.

TL;DR: It is suggested that Salmonella serovar specificity in sheep correlates with bacterial persistence at systemic sites following intravenous inoculation and that theSalmonella pathogenicity island 1 influences but the virulence plasmid genes do not influence the ability of serovars Abortusovis to invade the intestinal mucosa in sheep.

TL;DR: Strain typing with IS200 fingerprints proved to be more reliable than plasmid analysis, because the latter yielded a high degree of polymorphism, even among isolates from the same flock.

TL;DR: The phenotypic and genotypic characteristics of 69 wild-type strains of Salmonella abortusovis from Sardinia and other Italian regions, representing four different epidemic outbreaks, were studied and allowed us to outline a genetic correlation among S. abortuovis isolated from different outbreaks.

TL;DR: A bank of strains was created in order to identify any phenotypic modification which could affect the periplasmic and/or exported proteins involved in virulence of S. abortusovis TnphoA mutants, since a group of mutant strains has shown reduced virulence in mice and one mutant is completely avirulent.