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| Arsenic Resistance | Zone of Inhibition, mean diameter (mm) | Zone of Inhibition, mean diameter (mm) | p-value** |
| 4 μg/μl Concentration | 9.03 | 9.28 | 0.5571 |
| 16 μg/μl Concentration | 11.89 | 11.78 | 0.7281 |
| 64 μg/μl Concentration | 15.06 | 14.69 | 0.3670 |
| Phenotype |
No. of positive isolates, pre-2008 (n = 36) |
No. of positive isolates, post-2008 (n = 36) |
p-value* |
| Tetracycline Resistance | 19 | 32 | 0.0008 |
* calculated by chi-square test
** calculated by t-test
