Yellow Fever

  • No requirements or recommendations.


  • Areas with malaria: All areas <2,000 m (6,562 ft). None in Sana’a.
  • Estimated relative risk of malaria for US travelers: Low.
  • Drug resistance 4: Chloroquine.
  • Malaria species: P. falciparum 95%; P. malariae, P. vivax, P. ovale 5% combined.
  • Recommended chemoprophylaxis: Atovaquone-proguanil, doxycycline, or mefloquine.