Epidemiology and transmission
Yellow fever virus is transmitted to people primarily through the bite of infected Aedes or Haemagogus species mosquitoes. Mosquitoes acquire the virus by feeding on infected primates (human or non-human) and then can transmit the virus to other primates (human or non-human).
Jungle (Sylavatic) cycle
Vaccination confers lifelong protection
Vaccine-associated viscerotrophic disease
History of discovery