The current increase in Ebola cases in Nigeria related to the American that collapsed at the airport have climbed to 13 at this time. What happened here was that the patient had collapsed and people rushed over to help. Police were called, medics picked up the patient and rushed him to the hospital. All this time the patient was thought to be suffering from Malaria, a disease transmitted by mosquitoes. The man was handled the entire time with the least in precautions for such a serious disease. All those who came into contact with this person is a risk of becoming infected and infecting others as the disease is spread through not only blood but sweat, saliva, urine, just about any fluid in the body. Not only that but the virus can live on even after its host has died, on floors, doorknobs, car seats, any surface.
How many persons this person had contact with while sick and thus infectious is hard to know but you can count those on the airplane, those in the airport, those in the ambulance, those in the hospital and each person each one has come into contact with. I have a feeling this is going to start spreading through Nigeria like wildfire. Keep vigilant. Keep safe