Two scientists, one Nigerian and one American, created a cutting-edge surveillance network to catch the next emerging disease before it becomes a pandemic.
The virus is spread primarily by rats during dry season. The current outbreak in Nigeria has public health officials worried — and eager to find out what's behind it.
Back from a Liberia trip, the patient developed Ebola-like symptoms. One hospital sent him home. A few days later he ended up in an Ebola isolation ward and died. What went wrong?