Whole-genome Sequencing Analysis of Antimicrobial Resistance Genes in Streptococcus uberis and Streptococcus dysgalactiae isolates from Canadian Maritime Dairy Herds

摘要

Streptococcus uberis (S. uberis) and Streptococcus dysgalactiae (S. dysgalactiae) are classified as Gram positive, catalase-negative cocci (PNC) microorganisms and are frequently isolated in Canadian dairy farms (Olde Riekerink et al., 2008). Antimicrobial resistance (AMR) has been reported in different mastitis pathogens, to various degrees, in both short and long duration studies (Oliver and Murinda, 2012). The advent of whole genome sequencing (WGS) supports the molecular characterization and detection of multidrug resistance repertoires in mastitis pathogens, and allows comprehensive comparison to phenotypic characteristics.