Fig. 4

a Interval from previous infection to recurrence in patients with imported recurrent malaria by Plasmodium species. b Regional differences in the distributions of interval of Plasmodium vivax recurrence intervals. Southeast Asia includes Myanmar, Laos, Cambodia, and Indonesia. East Africa includes Ethiopia, Djibouti, Tanzania, Uganda, and Rwanda. South Asia includes Pakistan and India. West Africa includes Papua New Guinea, Sierra Leone, Liberia, Cote d’Ivoire, Ghana, Nigeria, and Mali. Central Africa includes Gabon, the Democratic Republic of the Congo, Equatorial Guinea, and Cameroon. c Regional differences in the distributions of Plasmodium ovale recurrence intervals. Central Africa includes Gabon, Democratic Republic of the Congo, Equatorial Guinea, Cameroon, and Chad. West Africa includes Guinea, Sierra Leone, Liberia, Cote d'Ivoire, Ghana, Nigeria, Benin, and Togo. East Africa includes Tanzania, Uganda, Rwanda, Burundi, and Kenya. South Africa includes Angola and Mozambique. Asia includes Pakistan, Vietnam, and the Philippines