Table 1 Antimicrobial resistance and β-lactamase production in Neisseria gonorrhoeae isolates (n = 2136) from Russia in 2009–2012
Number (%) of resistant isolates | ||||
|---|---|---|---|---|
2009 (n = 1200) | 2010 (n = 407) | 2011 (n = 423) | 2012 (n = 106) | |
Ciprofloxacin | 533 (44.4) | 217 (53.2) | 138 (32.6) | 27 (25.5) |
(R > 0.5 mg/L)a | ||||
Penicillin G | 115 (9.6) | 51 (12.5) | 56 (13.2) | 12 (11.3) |
(R > 1 mg/L)a | ||||
Azithromycin | 28 (2.3) | 20 (4.9) | 70 (16.5) | 18 (17.0) |
(R > 0.5 mg/L)a | ||||
Spectinomycin | 16 (1.3) | 18 (4.4) | 49 (11.6) | 1 (0.9) |
(R > 64 mg/L)a | ||||
Ceftriaxone | 0 | 0 | 0 | 0 |
(R > 0.25 mg/L)a | ||||
β-lactamase production | 4 (0.3) | 0 | 2 (0.5) | 0 |