The potential virulence of Listeria monocytogenes strains isolated from fresh produce processing facilities as determined by an invertebrate Galleria mellonella model.

Listeria monocytogenes, a bacterium responsible for listeriosis, is an environmental and food-borne pathogen that poses a particular risk to pregnant women and the elderly. While traditionally associated with animal products, ready-to-eat salads are increasingly recognised as a source of Listeria outbreaks. However, little is known about the potential virulence of Listeria isolates from the fresh produce environment.

Antibiotic Susceptibility of Species Isolated in Raw Chicken Meat from Retail Stores.

The study was aimed at evaluating the presence of antibiotic-resistant in retailed raw chicken meat from retail stores intended for human consumption. The presence, characterization, and antibiotic susceptibility of from 38 retail raw chicken meat samples was performed using a standard microbiological method involving mannitol salt agar (MSA) and Mueller-Hinton agar (MHA). All the samples were positive for species, of which 34 (89.

Antimicrobial Resistance in Strains Isolated from Humans and Pet Animals.

Throughout scientific literature, we can find evidence that antimicrobial resistance has become a big problem in the recent years on a global scale. Public healthcare systems all over the world are faced with a great challenge in this respect. Obviously, there are many bacteria that can cause infections in humans and animals alike, but somehow it seems that the greatest threat nowadays comes from the members, especially .

Specific microbiota direct the differentiation of IL-17-producing T-helper cells in the mucosa of the small intestine.

The requirements for in vivo steady state differentiation of IL-17-producing T-helper (Th17) cells, which are potent inflammation effectors, remain obscure. We report that Th17 cell differentiation in the lamina propria (LP) of the small intestine requires specific commensal microbiota and is inhibited by treating mice with selective antibiotics. Mice from different sources had marked differences in their Th17 cell numbers and animals lacking Th17 cells acquired them after introduction of bacteria from Th17 cell-sufficient mice.

Identification of species of the genus Candida by analysis of the 5.8S rRNA gene and the two ribosomal internal transcribed spacers.

The PCR amplification and subsequent restriction analysis of the ribosomal region spanning the internal transcribed spacers (ITS1 and ITS2) and the 5.8S rRNA gene is applied to the identification of yeasts belonging to the genus Candida. This methodology has previously been used for the identification of some species of this genus, but in the present work this application has been applied to the identification and characterisation of a greater number of species of the genus Candida, with a special survey of species of clinical and biotechnological interest.