TABLE 1 .
Properties of strains used in the study
| Strain | Sourcea | MIC (µg/ml)b |
|||
|---|---|---|---|---|---|
| AZI | CV | PB | TX-100 | ||
| GCGS0276 | GISP isolate; Kansas City, MO | 1 | 8 | 1,000 | 16,000 |
| GCGS0402 | GISP isolate; Miami, FL | 2 | 8 | 500 | >16,000 |
| GCGS0834 | GISP isolate; Los Angeles, CA | 2 | 8 | 500 | >16,000 |
| GCGS0353 | GISP isolate; Dallas, TX | 0.03 | 1 | 60 | <250 |
| GCGS0465 | GISP isolate; Phoenix, AZ | 0.06 | 0.5 | 125 | <250 |
| 28Bl | Disseminated gonococcal infection isolate (CDC, 1974) |
0.125 | 4 | 60 | <250 |
a
GISP isolates are from the Gonococcal Isolate Surveillance Project. The geographical location where the specimen was collected is shown.
b
AZI, azithromycin; CV, crystal violet; PB, polymyxin B; TX-100, Triton X-100. MIC values are the modes from three independent replicate tests.