Detection of Virulence Genes in Multidrug Resistant Enterococci Isolated from Feedlots Dairy and Beef Cattle: Implications for Human Health and Food Safety.

Detection of Virulence Genes in Multidrug Resistant Enterococci Isolated from Feedlots Dairy and Beef Cattle: Implications for Human Health and Food Safety. Biomed Res Int. 2019;2019:5921840 Authors: Tatsing Foka FE, Ateba CN Abstract The misuse/abuse of antibiotics in intensive animal rearing and communities led to the emergence of resistant isolates such as vancomycin-resistant enterococci (VREs) worldwide. This has become a major source of concern for the public health sector. The aim of this study was to report the antibiotic resistance profiles and to highlight the presence of virulence genes in VREs isolated from feedlots cattle of the North-West Province of South Africa. 384 faecal samples, 24 drinking troughs water, and 24 soil samples were collected aseptically from 6 registered feedlots. Biochemical and molecular methods were used to identify and categorise the enterococci isolates. Their antibiotic resistance profiles were assessed and genotypic methods were used to determine their antibiotic resistance and their virulence profiles. 527 presumptive isolates were recovered, out of which 289 isolates were confirmed as Enterococcus sp. Specifically, E. faecalis (9%), E. faecium (10%), E. durans (69%), E. gallinarum (6%), E. casseliflavus (2%), E. mundtii (2%), and E. avium (2%) were screened after molecular assays. VanA (62%), vanB (17%), and vanC (21%) resistance genes were detected in 176 Enterococcus sp., respectively. Mor...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research