Polymorphism in the LcrV Antigen Enables Immune Escape From the Protection Conferred by an LcrV-Secreting in a Pseudotuberculosis Mouse Model.

Yersinioses caused by , and are significant concerns in human and veterinary health. The link between virulence and the potent LcrV antigen has prompted the latter's selection as a major component of anti- vaccines. Here, we report that (i) the group of species encompassing and produces at least five different clades of LcrV and (ii) vaccination of mice with an LcrV-secreting only protected against strains producing the same LcrV clade as that of used for vaccination.

Clostridium ventriculi bacteremia following acute colonic pseudo-obstruction: A case report.

Clostridium ventriculi (formerly Sarcina ventriculi) is a Gram-positive, obligate anaerobic coccus. Human infections due to this bacterium have rarely been reported, its involvement in the development of gastric ulcers and perforation has been suggested. We present a case of bacteremia due to C.

Infective endocarditis: does a new 16S rDNA set of primers improve the microbiological diagnosis?

Background: In infective endocarditis (IE), blood cultures are negative in 2.5-31% of cases because of a previously prescribed antimicrobial treatment. Molecular methods may represent an alternative to conventional microbiological techniques to identify the causative agent.