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Table 1 Antimicrobial susceptibility of 108 Neisseria gonorrhoeae isolates from Hanoi, Vietnam in 2011

From: Antimicrobial susceptibility and genetic characteristics of Neisseria gonorrhoeae isolates from Vietnam, 2011

Antimicrobial (Breakpoints (mg/L)) Susceptible no. (%) Intermediate no. (%) Resistant no. (%)
Ciprofloxacin (S ≤ 0.032, I = 0.064, R > 0.064)* 2 (2) 0 106 (98)
Tetracycline (S ≤ 0.5, I = 1.0, R > 1.0)* 7 (6) 13 (12) 88 (82)
Penicillin G (S ≤ 0.064, I = 0.125-1.0, R > 1.0)* 2 (2) 54 (50) 52 (48)
Azithromycin (S ≤ 0.25, I = 0.5, R > 0.5)* 67 (62) 29 (27) 12 (11)
Ceftriaxone (S ≤ 0.125, I = NA, R > 0.125)* 103 (95) NA 5 (5)
Cefixime (S ≤ 0.125, I = NA, R > 0.125)* 107 (99) NA 1 (1)
Spectinomycin (S ≤ 64, I = NA, R > 64)* 108 (100) NA 0
  MIC range (mg/L) MIC 50 (mg/L) MIC 90 (mg/L)
Gentamicin** 0.032–8 4 4
Ertapenem** 0.002–0.125 0.012 0.032
Solithromycin** <0.016-0.25 0.064 0.125
  1. NA, not applicable.
  2. * Breakpoints for susceptible (S ≤ x mg/L) and resistant (R > y mg/L) according to The European Committee on Antimicrobial Susceptibility Testing (EUCAST; http://www.eucast.org).
  3. ** Breakpoints not stated by any organization.