Speak with Apothecary Zamah in the Pools of Vision in Thunder Bluff.
The tauren have a bond with the land, and it pains me to hear of Stonetalon's plight. But I fear that to heal the land, we must first remove the disease upon it.
Is it not fortunate, then, that the Forsaken are allied with us? They know much of disease. I believe they can aid us, and by doing so they will strengthen the trust between our people.
Speak with Apothecary Zamah. She is a scholar and an emissary of the Forsaken. You will find her in the Pools of Vision below the Spirit Rise.