Diphtheria Disease description a. Hepatitis B Measles Neonatal tetanus Pertussis Poliomyelitis Description Yellow fever is a viral disease that has caused large epidemics in Africa and the Americas. It can be recognized from historic texts stretching back 400 years.
Infection causes a wide spectrum of disease, from mild symptoms to severe illness and death.
Although a safe and effective vaccine has been available for 60 years, the number of people infected over the last two decades has increased and yellow fever is now a serious public health issue again. Vaccine and Immunization Background information on Yellow fever control.