Table 5. The number of clinical Pseudomonas aeruginosa strains which overexpressed RND efflux pumps
| Type of efflux pump | Number of strains | % of total strains |
| MexAB-OprM | 6 | 10.00 |
| MexCD-OprJ | 13 | 21.67 |
| MexEF-OprN | 32 | 53.33 |
| MexXY-OprM | 3 | 5.00 |
RND, resistance nodulation division.