Teach someone to fish, the saying goes, and they'll eat for a lifetime. Teach a nurse to become more involved in helping people heal, and patients could enjoy a longer life. That's the philosophy behind training nurses to mentor other nurses, says Sheila Davis, chief nursing officer and chief of Ebola response for Partners in Health, the worldwide nonprofit organization. PIH introduced nurse mentorship programs in Rwanda in 2010 and Haiti in 2012 — and plans to expand to Ebola-stricken Liberia and Sierra Leone. We spoke to Davis about how raising nurses' expertise has very real benefits for patients.