Clinical features and prognostic factors of listeriosis: the MONALISA national prospective cohort study.

Background: Listeriosis is a severe foodborne infection and a notifiable disease in France. We did a nationwide prospective study to characterise its clinical features and prognostic factors.

Methods: MONALISA was a national prospective observational cohort study.

Characterization of the novel Listeria monocytogenes PCR serogrouping profile IVb-v1.

The World Health Organization Collaborating Centre for Listeria (WHOCCL) has developed in 2004 a multiplex PCR assay that separates the 4 major Listeria monocytogenes serovars (1/2a, 1/2b, 1/2c, and 4b) into distinct PCR serogroups. A new PCR profile has been recently identified, constituted of amplified DNA fragments of prs, ORF2819, ORF2110 and lmo0737. Here we characterize 22 L.