Two Cases of Invasive Vancomycin-Resistant Group B Streptococcus Infection

Two Cases of Invasive Vancomycin-Resistant Group B Streptococcus Infection* MIC denotes minimum inhibitory concentration, and PCR polymerase chain reaction.† Verification of species Streptococcus agalactiae was performed with the use of Lancefield serotype grouping, CAMP factor testing, multilocus sequence typing, and 16S ribosomal RNA gene sequencing.‡ Susceptibility profiling was based on confirmatory testing by the Centers for Disease Control and Prevention by means of procedures recommended by the Clinical and Laboratory Standards Institute, including the use of both microdilution and Etest.