Molecular Characterization of Isolated from Human and Food Samples in Northern Algeria.

is a commensal resident of the skin and nasal cavities of humans and can cause various infections. Some toxigenic strains can contaminate food matrices and cause foodborne intoxications. The present study aimed to provide relevant information (clonal complex lineages, types, virulence and antimicrobial resistance-associated genes) based on DNA microarray analyses as well as the origins and dissemination of several circulating clones of 60 isolated from food matrices ( = 24), clinical samples ( = 20), and nasal carriers ( = 16) in northern Algeria.

Serotype diversity and slaughterhouse-level risk factors related to Salmonella contamination on poultry carcasses in Algiers.

Introduction: In Algeria, the latest studies on Salmonella demonstrated warning contamination rates in farms and slaughterhouses. This pathogen can contaminate poultry meat and put humans at risk especially that such product is nowadays widely consumed.

Methodology: a cross-sectional study was conducted in Algiers to evaluate prevalence, determine serotypes and quantify risk for Salmonella contamination in broiler chickens and turkeys at the post-chill stage of slaughter process.

Short communication: Diversity of staphylococci isolated from sheep mastitis in northern Algeria.

Mastitis in ruminants is an important disease with major effects on both the economy and animal welfare. It is caused by major pathogens such as Staphylococcus aureus and minor pathogens such as coagulase-negative staphylococci. The objective of this study was to identify and characterize staphylococci as a cause of sheep mastitis in Algeria.

Influence of some parameters on the ability of , , and to form biofilms.

Aim: The present study was conducted to evaluate the capacity of (L.m), (L.i), and to form biofilms on polystyrene support under different parameters by performing crystal violet (CV) staining technique.

isolated from selected dairies of Algeria: Prevalence and susceptibility to antibiotics.

Aim: The objectives of this study were to assess the prevalence of in raw milk in Algerian dairies, to study the effect of seasons on the contamination of milk and the susceptibility of isolated strains to antibiotics, and to estimate the risk on the health consumer.

Materials And Methods: The ISO method 6888-1 (1) was used for screening. Antimicrobial susceptibility to the 11most used antibiotics in veterinary medicine was assessed using the disk diffusion assay.

Combined impacts of oregano extract and vacuum packaging on the quality changes of frigate tuna muscles stored at 3±1°C.

Aim: The combined effects of oregano extract with vacuum packing (VP) on the quality enhancement of dark and white muscles of frigate tuna () stored as intact fillet at refrigerated (3±1°C) conditions were studied.

Materials And Methods: About 35 kg of fish were filleted without skin removal and randomly divided into two groups. One group without treatment (control) and the remaining group were dipped in a sterilized oregano extract solution for 5 min.

Sources of contamination, prevalence, and antimicrobial resistance of thermophilic isolated from turkeys.

Aim: Sources of contamination, prevalence, and antimicrobial susceptibility of thermophilic isolated from turkey samples were determined.

Materials And Methods: A total of 300 samples were collected from 3 farms (fecal droppings) and 4 poultry slaughterhouses (neck skins and ceca) located in the middle area of Algeria (Algiers, Boumerdès, and Bouira). After detection, an antibiogram was realized only for slaughterhouses samples.

Emerging of antimicrobial resistance in staphylococci isolated from clinical and food samples in Algeria.

Objective: The antimicrobial resistance of staphylococci rose worldwide. In total, 96 Staphylococcus isolates from food and clinical samples were collected from two provinces in Algeria. The antimicrobial susceptibility testing was performed and resistance-associated genes were detected.

Prevalence and antimicrobial resistance of Salmonella isolated from meat and meat products in Algiers (Algeria).

This study was conducted in order to estimate the proportion of raw meat and processed meat products contaminated by Salmonella in the region of Algiers, Algeria, to identify serovars and to determine the antimicrobial resistance patterns of isolates. Out of the total 314 samples (144 of raw red meat and meat products, 128 of raw poultry meat and poultry products, and 42 of processed meat products) collected from various retail outlets, 61 (19.43%) were tested positive for Salmonella.

Identification and molecular characterization of Listeria monocytogenes isolated in raw milk in the region of Algiers (Algeria).

Listeria monocytogenes was isolated from raw milk, whey and curdled milk produced and collected in the region of Algiers and Blida between September 2003 and July 2004. Four out of 153 (2.61%) farm milk samples and 6 out of 80 (7.