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| Viral Isolates | Origin of Isolate | Co-Receptor Usage | Clade | Viral Inoculum (TCID50) |
| IIIB | Laboratory | X4 | B | 1×105 |
| Bal | Laboratory | R5 | B | 1×106 |
| 015 | Clinical | R5 | B | 1.2×105 |
| 074 | Clinical | X4 | B | 6.2×103 |
| CH058 | Transmitter/Founder | R5 | B | 3.1×104 |
| CH040 | Transmitter/Founder | R5 | B | 6.2×103 |
| RW92008 | African | X4 | A | 8.1×103 |
| IN93999 | Indian | R5 | C | 2.5×102 |
