The vector for yellow fever is mosquito bites from infected Aedes or Haemagogus species.
- The yellow fever virus is an RNA virus belonging to the Flavivirus family.
- It’s similar to the viruses that cause West Nile, St. Louis encephalitis, and Japanese encephalitis.
- The yellow fever virus is transmitted to humans mainly by mosquito bites from infected Aedes or Haemagogus species.
- Mosquitoes pick up the virus by feeding on infected primates and can then spread it to other primates.
- Mosquitoes are contagious to people infected with the yellow fever virus for up to 5 days before and after the onset of fever.