It is suspected that the high incidence of dengue fever helps confer protection against yellow fever, and that the Asian mosquito strains are not as competent as vectors of the disease.

  1. Previous exposure to or infection with dengue appears to confer some protection against yellow fever.
  2. Treatment consists of complete bed rest--including sedatives if necessary; a high-protein, high-carbohydrates liquid diet; analgesics for headache; and antipyretics and tepid sponge baths to reduce fever.
  3. Fluids must be carefully monitored for adequate blood volume; transfusions may be required.
  4. In severe cases, patients may receive calcium gluconate to help counteract hemorrhaging.