TABLE 1.

Selectivity indices of essential oils for HSV-1a

Essential oilCC50 (%)EC50 (%)SI
Ginger0.004 ± 0.0010.0002 ± 0.0000120
Thyme0.007 ± 0.00030.001 ± 0.00017
Hyssop0.0075 ± 0.0020.0001 ± 0.0000175
Sandalwood0.0015 ± 0.00010.0002 ± 0.0000037
  • a Experiments were repeated independently two times, and data presented are the means for three experiments. SI, selectivity index.