TABLE 2

Distribution of CR-GNB isolates and types of carbapenemase genes among CR-GNB in carriage and acquisition groups

OrganismNo. (%) of isolatesNo. of isolates carrying the following carbapenemase gene:
blaIMPblaNDMblaOXA-23blaOXA-24blaOXA-51blaOXA-58blaOXA-23/51blaOXA-51/58blaOXA-23/51/58blaOXA-24/51/58
CR-GNB carriage isolates37
    A. baumannii15 (40.5)11212513
    K. pneumoniae9 (24.3)6
    Acinetobacter spp.5 (13.5)11
    Enterobacter spp.3 (8.1)2
    Other CR-GNBa5 (13.5)
CR-GNB acquisition isolates59
    A. baumannii28 (47.5)415321
    K. pneumoniae13 (22.0)9
    Acinetobacter spp.7 (11.9)211
    P. aeruginosa5 (8.5)3
    Enterobacter spp.1 (1.7)1
    Klebsiella spp.1 (1.7)1
    Other CR-GNBb4 (6.8)
  • a Other CR-GNB isolates included P. aeruginosa (n = 2), Escherichia coli (n = 1), Serratia marcescens (n = 1), and Citrobacter freundii (n = 1).

  • b Other CR-GNB isolates included Klebsiella oxytoca (n = 2), Serratia spp. (n = 1), and Shigella spp. (n = 1).