Listeria monocytogenes consists of at least 4 evolutionary lineages (I, II, III, and IV) with
different but overlapping ecological niches. Most L. monocytogenes isolates seem to belong to …

As we are approaching the twentieth anniversary of PulseNet, a network of public health and
regulatory laboratories that has changed the landscape of foodborne illness surveillance …

Four isolates (FSL S4-120 T , FSL S4-696, FSL S4-710, and FSL S4-965) of Gram-positive,
motile, facultatively anaerobic, non-spore-forming bacilli that were phenotypically similar to …

Background The bacterial genus Listeria contains pathogenic and non-pathogenic species,
including the pathogens L. monocytogenes and L. ivanovii, both of which carry homologous …

Sampling of seafood and dairy processing facilities in the north-eastern USA produced 18
isolates of Listeria spp. that could not be identified at the species-level using traditional …

Psychrotolerant spore-forming bacteria represent a major challenge to the goal of extending
the shelf life of pasteurized dairy products. The objective of this study was to identify …

Background Divergence of bacterial populations into distinct subpopulations is often the
result of ecological isolation. While some studies have suggested the existence of Salmonella …

For Salmonella enterica serovar Enteritidis, 85% of isolates can be classified into 5 pulsed-field
gel electrophoresis (PFGE) types. However, PFGE has limited discriminatory power for …

Sampling of agricultural and natural environments in two US states (Colorado and Florida)
yielded 18 Listeria-like isolates that could not be assigned to previously described species …

In response to the Yi-Yun Liu and colleagues’ finding of a mobile genetic element responsible
for colistin resistance, mcr-1, 1 and the accompanying Comment asking “is plasmid-…