β-Lactam Resistance in Haemophilus parasuis Is Mediated by Plasmid pB1000 Bearing bla _ROB-1

β-Lactam Resistance in Haemophilus parasuis Is Mediated by Plasmid pB1000 Bearing bla _ROB-1 Haemophilus influenzae Clinical Isolates with Plasmid pB1000 Bearing bla _ROB-1 : Fitness Cost and Interspecies Dissemination Multiresistance in Pasteurella multocida Is Mediated by Coexistence of Small Plasmids Genotypic versus Phenotypic Characterization, with Respect to β-Lactam Susceptibility, of Haemophilus influenzae Isolates Exhibiting Decreased Susceptibility to β-Lactam Resistance Markers Diversity of Ampicillin Resistance Genes and Antimicrobial Susceptibility Patterns in Haemophilus influenzae Strains Isolated in Korea First Detection of Plasmid-Encoded bla _OXY β-Lactamase Plasmid-Mediated Resistance to Cephalosporins in Salmonella enterica Serovar Typhi Point Mutation in the Group B Streptococcal pbp2x Gene Conferring Decreased Susceptibility to β-Lactam Antibiotics High Diversity of Extended-Spectrum β-Lactamases in Escherichia coli Isolates from Italian Broiler Flocks Clonal Spread of Highly β-Lactam-Resistant Streptococcus pneumoniae Isolates in Taiwan