| risk of escherichia coli o157:h7, non-o157 shiga toxin-producing escherichia coli, and campylobacter spp. in food animals and their products in qatar. | escherichia coli o157:h7, non-o157 e. coli, and campylobacter spp. are among the top-ranked pathogens that threaten the safety of food supply systems around the world. the associated risks and predisposing factors were investigated in a dynamic animal population using a repeat-cross-sectional study design. animal and environmental samples were collected from dairy and camel farms, chicken processing plants, and abattoirs and analyzed for the presence of these pathogens using a combination of bac ... | 2015 | 26408129 |
| molecular pathotyping and phylogenesis of the first newcastle disease virus strain isolated from backyard chickens in qatar. | the first newcastle disease virus (ndv) field strain (ndv-qc08), previously isolated and identified in qatar, was further subjected to molecular characterization and phylogenic analysis at passage levels two. initial amplification and detection of the complementary dna (cdna) fragment of the ndv rna amnioallantoic fluid (aaf) extract demonstrated the positive virus identity using real-time reverse transcriptase chain reaction (rrt-pcr). partial sequence of the totally amplified 216 bp of the fun ... | 2015 | 25277494 |
| prevalence of virulence/stress genes in campylobacter jejuni from chicken meat sold in qatari retail outlets. | chicken meat from the shelves of supermarkets in qatar was tested for the presence of campylobacter spp. and the presence of five virulence genes (htrb, cdtb, clpp, cadf and ciab) was assessed in isolates. forty eight percent of the chickens provided for supermarkets by saudi (53%) and qatari (45.9%) producers were found to be contaminated and the most important factor affecting the overall prevalence of contaminated chickens was the store from which chicken samples originated. variation in prev ... | 2016 | 27258021 |