Several companies are revving up to test their unproven Ebola treatments in West Africa by the end of the summer. This fast-tracking means these companies won't have enough time to thoroughly verify that the drugs are safe or that they even work. That's a risk WHO is willing to take because this strain of Ebola is killing half of its victims; it would be unethical not to give it a try. But using these experimental drugs now could change the landscape of Ebola treatment in the long-term, says Morse. For example, an experimental rabies treatment, known as the Milwaukee Protocol, may have saved a girl's life in 2004, and "ever since then we can't ethically deny anybody this particular treatment, and we don't know if it actually works," says Morse. "It's going to be an interesting dilemma."