If they live in an area known to have yellow fever, they should consider getting vaccinated. Or even if they travel to an area affected by yellow fever, they must get vaccinated first. The vaccine is inexpensive and is an extra precaution. In Africa, a vast campaign was carried out to vaccinate three countries. These people were aged from 9 months to 45 years (WHO. Yellow fever in Africa and South America, 2014). Using mosquito repellent and appropriate clothing is the next best thing to use. Additionally, if you don't have to be outside, staying indoors is probably the most recommended thing to do. In the event that a person becomes infected, there is no known treatment. Supportive care is essentially the only thing a hospital can do. These supportive treatments would include providing fluids and oxygen, maintaining adequate blood pressure, replacing blood loss, dialysis for kidney failure, and treating any other infections that develop. (Staff, M. 2014). Once a person has had this disease, they will be immune to it