Spanish nurse Teresa Romero recovered from Ebola after a month of quarantine, Nov. 5th, 2014. (Xinhua/AP)

Transmission routes

Starting from September 30th this year, after the United States announced the first Ebola patient, the US, Spain, Mali, Nigeria, Senegal, and India have all reported local Ebola cases. This is the first time that Ebola has come out of Africa and became a “global” disease.