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Biofilm production S. aureus isolates in microtiter plate and Congo red agar method
| Method | Biofilm formation | MSSA (n = 9) | Percent (%) | MRSA (n = 30) | Percent (%) | Total (n=39) | Percent (%) |
|---|---|---|---|---|---|---|---|
| Modified Congo red agar | Very black | 3 | 33.3 | 1 | 3.3 | 4 | 10.2 |
| Black | 4 | 44.5 | 11 | 36.7 | 15 | 38.5 | |
| Almost black | 1 | 11.1 | 7 | 23.3 | 8 | 20.5 | |
| Red | 1 | 11.1 | 11 | 36.7 | 12 | 30.8 | |
| Microtiter plate assay | Strong | 3 | 33.3 | 5 | 16.6 | 8 | 20.5 |
| Moderate | 3 | 33.3 | 8 | 26.7 | 11 | 28.2 | |
| Weak | 2 | 22.2 | 6 | 20 | 8 | 20.5 | |
| None | 1 | 11.1 | 11 | 36.7 | 12 | 30.8 |
