Yellow Fever

  • Requirements: Required if traveling from a country with risk of YFV transmission and ≥1 year of age, including transit >12 hours in an airport located in a country with risk of YFV transmission. 1
  • Recommendations: None.


  • Areas with malaria: Present in rural areas. None in Georgetown, Kuala Lampur, and Penang State (includes Penang Island).
  • Estimated relative risk of malaria for US travelers: Low.
  • Drug resistance 4: Chloroquine.
  • Malaria species: P. falciparum, P. vivax, P. knowlesi, P. malariae, P. ovale.
  • Recommended chemoprophylaxis: Rural areas: Atovaquone-proguanil, doxycycline, or mefloquine.