The potential role of Listeria monocytogenes in promoting colorectal adenocarcinoma tumorigenic process.

Background: Listeria monocytogenes is a foodborne pathogen, which can cause a severe illness, especially in people with a weakened immune system or comorbidities. The interactions between host and pathogens and between pathogens and tumor cells have been debated in recent years. However, it is still unclear how bacteria can interact with tumor cells, and if this interaction can affect tumor progression and therapy.

Evidence of Virulent Multi-Drug Resistant and Biofilm-Forming Species Isolated from Various Sources in South Africa.

Listeriosis is a foodborne disease caused by Listeria monocytogenes species and is known to cause severe complications, particularly in pregnant women, young children, the elderly, and immunocompromised individuals. The aim of this study was to investigate the presence of Listeria species in food and water using both biochemical and species-specific PCR analysis. L.

Effect of Clove () spice as microbial inhibitor of resistant bacteria and Organoleptic Quality of meat.

For centuries, spices have been utilized as flavourants, colourants and as preservatives in food. Moreover, spices possess various antimicrobial properties with massive health benefits for the treatment and management of ailments and diseases. The present study was focused on three (3) aspects; (1) isolation and molecular identification of bacteria from the meat; (2) to determine the antimicrobial activity of the spices against the pathogens; (3) to assess the organoleptic properties of the spiced meat.

Characterisation of Species from Surface and Drinking Water Sources and Assessment of Biocontrol Potentials of Their Bacteriophages.

The aim of this study was to characterise species of water samples collected from taps, boreholes, and dams in the North West province, South Africa, and assess biocontrol potentials of their bacteriophages. Fifty-seven putative isolates were obtained on thiosulfate-citrate-bile-salt-sucrose agar and identified using biochemical tests and species-specific PCRs. Isolates were further characterised based on the presence of virulence factors, susceptibility to eleven antibiotics, and biofilm formation potentials.

Listeriosis Outbreak in South Africa: A Comparative Analysis with Previously Reported Cases Worldwide.

species are Gram-positive, rod-shaped, facultative anaerobic bacteria, which do not produce endospores. The genus, , currently comprises 17 characterised species of which only two ( and ) are known to be pathogenic to humans. Food products and related processing environments are commonly contaminated with pathogenic species.

Virulence profiles of vancomycin-resistant enterococci isolated from surface and ground water utilized by humans in the North West Province, South Africa: a public health perspective.

Vancomycin-resistant enterococci (VRE) have been responsible for numerous outbreaks of serious infections in humans worldwide. Enterococcus faecium and Enterococcus faecalis are the principal species that are frequently associated with vancomycin resistance determinants, thus usually implicated in hospital- and community-acquired infections in humans. The study aim was to determine the antibiotic resistance and virulence profiles of VREs isolated from surface and groundwater samples that are used by humans in the North West Province, South Africa.