| Afghanistan | If traveling from a country with risk of yellow fever transmission | None |
| Albania | If traveling from a country with risk of yellow fever transmission fever transmission and ≥1 year of age | None |
| Algeria | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Andorra | Not required | None |
| Angola | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Anguilla (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Antarctica | Not required | None |
| Antigua and Barbuda | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Argentina | Not required | Yellow fever vaccination is recommended for all travelers ≥9 months of age who are going to the northern and northeastern forested areas of Argentina, including Iguassu Falls and all areas bordering Paraguay and Brazil. These areas include all departments of Misiones and Formosa Provinces; and the Department of Bermejo in Chaco Province; Departments of Berón de Astrada, Capital, General Alvear, General Paz, Ituzaingó, Itatí, Paso de los Libres, San Cosme, San Miguel, San Martín and Santo Tomé in Corrientes Province; Departments of Valle Grande, Ledesma, Santa Bárbara and San Pedro in Jujuy Province; and Departments of General José de San Martín, Oran, Rivadavia and Anta in Salta Province. |
| Armenia | Not required | None |
| Aruba | If traveling from a country with risk of yellow fever transmission and ≥6 months of age5 | None |
| Australia | All persons ≥1 year of age who, within 6 days of arrival in Australia, have been in or have passed through a country with risk of yellow fever transmission | None |
| Austria | Not required | None |
| Azerbaijan | Not required | None |
| Azores (Portugal) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Bahamas, The | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Bahrain | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Bangladesh | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Barbados | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Belarus | Not required | None |
| Belgium | Not required | None |
| Belize | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Benin | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Bermuda (U.K.) | Not required | None |
| Bhutan | If traveling from a country with risk of yellow fever transmission | None |
| Bolivia | Required for all travelers ≥1 year of age.
For U.S. citizens: Medical waivers must be translated into Spanish and accompany the International Certificate of Vaccination or Prophylaxis (ICVP). Travelers who do not have a valid ICVP will still be allowed to enter Bolivia if they agree to sign an affidavit exempting the Bolivian state from any liability in the event the traveler gets sick with yellow fever within the Bolivian territory. This last option may cause delays at the point of entry. | For all travelers ≥9 months of age traveling to areas east of the Andes Mountains (see Map 2-4). Vaccination is NOT recommended for travel only to the cities of La Paz or Sucre. |
| Bosnia and Herzegovina | Not required | None |
| Botswana | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Brazil | Not required | For all travelers ≥9 months of age going to the following areas at risk for yellow fever transmission, including the ENTIRE states of Acre, Amapá, Amazones, Distrito Federal (including the capital city of Brasília), Goiás, Maranhão, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Pará, Rondônia, Roraima, and Tocantins; and the designated areas of the following states: northwest and west Bahia, central and west Paraná, southwest Piauí, northwest and west central Rio Grande do Sul, far west Santa Catarina, and north and west São Paulo. Vaccination is recommended for travelers visiting Iguassu Falls. Vaccination is NOT recommended for travel to the following coastal cities: Rio de Janeiro, São Paulo, Salvador, Recife, and Fortaleza. |
| British Indian Ocean Territory; includes Diego Garcia (U.K.) | Not required | None |
| Brunei | Required from travelers ≥1 year of age arriving within 6 days from countries with risk of yellow fever transmission or having passed through areas partly or wholly at risk of yellow fever transmission within the preceding 6 days. | None |
| Bulgaria | Not required | None |
| Burkina Faso | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Burma (Myanmar) | If traveling from a country with risk of yellow fever transmission. Required also for nationals and residents of Burma (Myanmar) departing for a country with risk of yellow fever transmission | None |
| Burundi | Required upon arrival from all countries if travelers is ≥1 year of age | For all travelers ≥9 months of age |
| Cambodia | If traveling from a country with risk of yellow fever transmission | None |
| Cameroon | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Canada | Not required | None |
| Canary Islands (Spain) | Not required | None |
| Cape Verde | If traveling from a country with risk of yellow fever transmission and ≥1 year of age. | None |
| Cayman Islands (U.K.) | Not required | None |
| Central African Republic | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Chad | If traveling from a country with risk of yellow fever transmission | For all travelers ≥9 months of age traveling to areas south of the Sahara Desert |
| Chile | Not required | None |
| China | If traveling from a country with risk of yellow fever transmission | None |
| Christmas Island (Australia) | All travelers ≥1 year of age, who within the past 6 days have traveled or passed through an endemic area, as listed by WHO | None |
| Cocos (Keeling) Islands | All persons ≥1 year of age who, within 6 days of arrival, have been in or have passed through a country with risk of yellow fever transmission | None |
| Colombia | Not required | For all travelers ≥9 months of age. Travelers whose itinerary is limited to the cities of Bogotá, Cali, or Medellín are at lower risk and may consider foregoing vaccination. |
| Comoros | Not required | None |
| Congo, Republic of the (Congo-Brazzaville) | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Cook Islands (New Zealand) | Not required | None |
| Costa Rica | Required from travelers coming from countries with risk of yellow fever transmission. No certificate is required for travelers <9 months of age and ≥60 years of age, pregnant or lactating women, persons with allergy to eggs or gelatin, immunosupression, thymus disease, a personal or family history of adverse reactions associated with the yellow fever vaccine, or asymptomatic HIV infection with laboratory evidence of satisfactory immune functions.
The following countries are considered at risk of yellow fever transmission:
South America: Bolivia, Brazil, Colombia, Ecuador, French Guyana, Peru, Venezuela.
Africa: Angola, Benin, Burkina Faso, Cameroon, Gabon, The Gambia, Ghana, Guinea, Liberia, Nigeria, Democratic Republic of Congo, Sierra Leone, Sudan | None |
| Côte d'Ivoire (Ivory Coast) | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Croatia | Not required | None |
| Cuba | Not required | None |
| Cyprus | Not required | None |
| Czech Republic | Not required | None |
| Democratic Republic of the Congo (Congo-Kinshasa) | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Denmark | Not required | None |
| Djibouti | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Dominica | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Dominican Republic | Not required | None |
| Easter Island (Chile) | Required for travelers coming from a country with risk of yellow fever transmission | None |
| Ecuador, including the Galápagos Islands | Required from travelers ≥1 year of age coming from countries with risk of yellow fever transmission. Nationals and residents of Ecuador are required to possess certificates of vaccination on their departure to an area with risk of yellow fever transmission. | For all travelers ≥9 months of age who are traveling to the following provinces in the Amazon Basin: Morona-Santiago, Napo, Orellana, Pastaza, Sucumbíos, and Zamora-Chinchipe, and all other areas in the eastern part of the Andes Mountains, NOT including the cities of Quito and Guayaquil or the Galápagos Islands. |
| Egypt | If traveling from countries with risk of yellow fever transmission and ≥1 year of age. Air passengers without a certificate in transit, but coming from these countries or areas, will be detained in the precincts of the airport until they resume their journey. All travelers arriving from Sudan are required to have a vaccination certificate or a location certificate issued by a Sudanese official center, stating that they have not been in Sudan south of 15° N within the previous 6 days. Required also for travelers arriving from or transiting: Africa: Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Congo, Côte d’Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Ethiopia, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Niger, Nigeria, Rwanda, São Tomé and Príncipe, Senegal, Sierra Leone, Somalia, Sudan (south of 15° N), Tanzania, Togo, Uganda, and Zambia Americas: Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, Trinidad and Tobago, and Venezuela | None |
| El Salvador | If traveling from a country with risk of yellow fever transmission and ≥6 months of age5 | None |
| Equatorial Guinea | If traveling from a country with risk of yellow fever transmission | For all travelers ≥9 months of age |
| Eritrea | If traveling from a country with risk of yellow fever transmission | None |
| Estonia | Not required | None |
| Ethiopia | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Falkland Islands (U.K.) | Not required | None |
| Faroe Islands (Denmark) | Not required | None |
| Fiji | If traveling from a country with risk of yellow fever transmission within 10 days of having stayed overnight or longer and ≥1 year of age | None |
| Finland | Not required | None |
| France | Not required | None |
| French Guiana | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| French Polynesia, includes the island groups of Society Islands (Tahiti, Moorea, and Bora-Bora); Marquesas Islands (Hiva Oa and Ua Huka); and Austral Islands (Tubuai and Rurutu) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Gabon | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Gambia, The | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Georgia | Not required | None |
| Germany | Not required | None |
| Ghana | Required upon arrival from all countries | For all travelers ≥9 months of age |
| Gibraltar (U.K.) | Not required | None |
| Greece | Not required | None |
| Greenland (Denmark) | Not required | None |
| Grenada | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Guadeloupe, including St. Barthelemy and Saint Martin (France) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Guam (U.S.) | Not required | None |
| Guatemala | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Guinea | If traveling from a country with risk of yellow fever transmission and ≥1 year of age. | For all travelers ≥9 months of age |
| Guinea-Bissau | If traveling from a country with risk of yellow fever transmission and ≥1 year of age Required also for travelers arriving from: Africa: Angola, Benin, Burkina Faso, Burundi, Cape Verde, Central African Republic, Chad, Congo, Côte d’Ivoire, Democratic Republic of Congo, Djibouti, Equatorial Guinea, Ethiopia, Gabon, The Gambia, Ghana, Guinea, Kenya, Liberia, Madagascar, Mali, Mauritania, Mozambique, Niger, Nigeria, Rwanda, São Tomé and Principe, Senegal, Sierra Leone, Somalia, Tanzania, Togo, Uganda, and Zambia Americas: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela | For all travelers ≥9 months of age |
| Guyana | If traveling from a country with risk of yellow fever transmission. Required also for travelers arriving from: Africa: Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Congo, Côte d’Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Ethiopia, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Mauritania, Niger, Nigeria, Rwanda, São Tomé and Principe, Senegal, Sierra Leone, Somalia, Tanzania, Togo, and Uganda Americas: Belize, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela | For all travelers ≥9 months of age |
| Haiti | If traveling from a country with risk of yellow fever transmission | None |
| Honduras | Required from travelers ≥1 year of age coming from countries with risk of yellow fever transmission. The Government of Honduras is also recommending vaccine for travelers coming from Panama. | None |
| Hong Kong SAR (China) | Not required | None |
| Hungary | Not required | None |
| Iceland | Not required | None |
| India | Required from travelers ≥6 months of age coming from a country with risk of yellow fever transmission Specifically, per the Government of India, anyone (except infants ≤6 months old) arriving by air or sea without a certificate is detained in isolation for up to 6 days if that person (i) arrives within 6 days of departure from an area with risk of yellow fever transmission, or (ii) has been in such an area in transit (except those passengers and members of crew who, while in transit through an aiport situated in an area with risk of yellow fever transmission, remained within the airport premises during the period of their entire stay and the Health Officer agrees to such an exemption), or (iii) has come on a ship that started from or touched at any port in a yellow fever area with risk of yellow fever transmission up to 30 days before its arrival into India, unless such a ship has been disinsected in accordance with the procedure laid down by WHO, or (iv) has come by an aircraft which has been in an area with risk of yellow fever transmission and has not been disinsected in accordance with the provisions laid down in the Indian Aircraft Public Health Rules, 1954, or those recommended by WHO. The following countries and areas are regarded as at risk of yellow fever transmission:
Africa: Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Congo, Côte d’Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Ethiopia, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Niger, Nigeria, Rwanda, São Tomé and Principe, Senegal, Sierra Leone, Somalia, Sudan, Togo, Uganda, Tanzania, and Zambia
Americas: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, Trinidad and Tobago, and Venezuela
Note: When a case of yellow fever is reported from any country, that country is regarded by the Government of India as a country with risk of yellow fever and is added to the above list. | None |
| Indonesia | If traveling from a country with risk of yellow fever transmission and ≥9 months of age | None |
| Iran | If traveling from a country with risk of yellow fever transmission | None |
| Iraq | If traveling from a country with risk of yellow fever transmission | None |
| Ireland | Not required | None |
| Israel | Not required | None |
| Italy (includes Holy See) | Not required | None |
| Jamaica | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Japan | Not required | None |
| Jordan | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Kazakhstan | If traveling from a country with risk of yellow fever transmission | None |
| Kenya | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age. The cities of Nairobi and Mombasa have lower risk of transmission than rural areas. |
| Kiribati (formerly Gilbert Islands), includes Tarawa, Tabuaeran (Fanning Island), and Banaba (Ocean Island) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Korea, North | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Korea, South | Not required | None |
| Kosovo | Not required | None |
| Kuwait | Not required | None |
| Kyrgyzstan | Not required | None |
| Laos | If traveling from a country with risk of yellow fever transmission | None |
| Latvia | Not required | None |
| Lebanon | If traveling from a country with risk of yellow fever transmission and ≥6 months of age5 | None |
| Lesotho | If traveling from a country with risk of yellow fever transmission | None |
| Liberia | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Libya | If traveling from a country with risk of yellow fever transmission | None |
| Liechtenstein | Not required | None |
| Lithuania | Not required | None |
| Luxembourg | Not required | None |
| Macau SAR (China) | Not required | None |
| Macedonia | Not required | None |
| Madagascar | If traveling from a country with risk of yellow fever transmission | None |
| Madeira Islands (Portugal) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Malawi | If traveling from a country with risk of yellow fever transmission | None |
| Malaysia | Required from travelers ≥1 year of age when arriving within 6 days from countries with risk of yellow fever transmission | None |
| Maldives | If traveling from a country with risk of yellow fever transmission | None |
| Mali | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age going to areas south of the Sahara Desert |
| Malta | If traveling from a country with risk of yellow fever transmission and ≥9 months of age If indicated on epidemiological grounds, infants <9 months of age are subject to isolation or surveillance if coming from an area with risk of yellow fever transmission. | None |
| Marshall Islands | Not required | None |
| Martinique (France) | Not required | None |
| Mauritania | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age traveling to areas south of the Sahara Desert |
| Mauritius | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Mayotte (French territorial collectivity) | Not required | None |
| Mexico | Not required | None |
| Micronesia, Federated States of; includes Yap Islands, Pohnpei, Chuuk, and Kosrae | Not required | None |
| Moldova | Not required | None |
| Monaco | Not required | None |
| Mongolia | Not required | None |
| Montenegro | Not required | None |
| Montserrat (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Morocco | Not required | None |
| Mozambique | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Namibia | If traveling from a country with risk of yellow fever transmission The countries, or parts of countries, included in the endemic zones in Africa and South America are regarded as areas with risk of yellow fever transmission. Travelers on scheduled flights that originated outside the countries with risk of yellow fever transmission, but who have been in transit through these areas, are not required to possess a certificate provided that they remained at the scheduled airport or in the adjacent town during transit. All passengers whose flights originated in countries with risk of yellow fever transmission or who have been in transit through these countries on unscheduled flights are required to possess a certificate. The certificate is not insisted upon in the case of children <1 year of age, but such infants may be subject to surveillance. | None |
| Nauru | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Nepal | If traveling from a country with risk of yellow fever transmission | None |
| Netherlands | Not required | None |
| Netherlands Antilles (Bonaire, Curaçao, Saba, St. Eustasius, and St. Maarten) | If traveling from a country with risk of yellow fever transmission and ≥6 months of age5 | None |
| New Caledonia (France) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age. Note: In the event of an epidemic threat to the territory, a specific vaccination certificate may be required. | None |
| New Zealand | Not required | None |
| Nicaragua | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Niger | Required upon arrival from all countries if traveler is ≥1 year of age. The Government of Niger recommends vaccine for travelers leaving Niger. | For all travelers ≥9 months of age traveling to areas south of the Sahara Desert. |
| Nigeria | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Niue (New Zealand) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Norfolk Island (Australia) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Northern Mariana Islands (U.S.), includes Saipan, Tinian, and Rota Island | Not required | None |
| Norway | Not required | None |
| Oman | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Pakistan | Required from travelers coming from any part of a country in which there is a risk of yellow fever transmission; infants <6 months of age are exempt if the mother’s vaccination certificate shows that she was vaccinated before the birth of the child.5 | None |
| Palau | Required from all travelers ≥1 year of age coming from countries with risk of yellow fever
transmission or from countries in any part
of which there is a risk of yellow fever
transmission | None |
| Panama | If traveling from a country with risk of yellow fever transmission | For all travelers ≥9 months of age traveling to the provinces of Darien, Kuna Yala (old San Blas), Comarca Emberá, and Panama east of the Canal Zone, EXCLUDING the Canal Zone, Panama City, and San Blas Islands |
| Papua New Guinea | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Paraguay | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Peru | Not required | For all travelers ≥9 months of age traveling to the areas east of the Andes Mountains (see Map 2-4) and for those who intend to visit any jungle areas of the country <2,300 m (<7,546 ft). Travelers who are limiting travel to the cities of Cuzco and Machu Picchu do NOT need vaccination. |
| Philippines | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Pitcairn Islands (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Poland | Not required | None |
| Portugal | Required only for travelers ≥1 year of age arriving from a country with risk of yellow fever transmission and destined for the Azores and Madeira. However, no certificate is required for travelers in transit at Funchal, Santa Maria, and Porto Santo. | None |
| Puerto Rico (U.S.) | Not required | None |
| Qatar | Not required | None |
| Réunion (France) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Romania | Not required | None |
| Russia | Not required | None |
| Rwanda | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Saint Helena (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Saint Kitts (Saint Christopher) and Nevis (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Saint Lucia | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Saint Pierre and Miquelon (France) | Not required | None |
| Saint Vincent and the Grenadines | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Samoa (formerly Western Somoa) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Samoa, American (U.S.) | Not required
| None
|
| San Marino | Not required | None |
| São Tomé and Príncipe | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Saudi Arabia | If traveling from a country with risk of yellow fever transmission | None |
| Senegal | If traveling from a country with risk of yellow fever transmission | For all travelers ≥9 months of age |
| Serbia | Not required | None |
| Seychelles | If traveling from a country with risk of yellow fever transmission within the preceding 6 days and ≥1 year of age | None |
| Sierra Leone | Required upon arrival from all countries | For all travelers ≥9 months of age |
| Singapore | If traveling from a country with risk of yellow fever transmission within the preceding 6 days and ≥1 year of age | None |
| Slovakia | Not required | None |
| Slovenia | Not required | None |
| Solomon Islands | If traveling from a country with risk of yellow fever transmission | None |
| Somalia | If traveling from a country with risk of yellow fever transmission | For all travelers ≥9 months of age. |
| South Africa | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| South Georgia and the South Sandwich Islands | Not required | None |
| South Sandwich Islands | Not required | None |
| Spain | Not required | None |
| Sri Lanka | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Sudan | If traveling from a country with risk of yellow fever transmission and ≥9 months of age. A certificate may be required for travelers leaving Sudan. | For all travelers ≥9 months of age traveling to areas south of the Sahara Desert, EXCLUDING the city of Khartoum |
| Suriname | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age |
| Swaziland | If traveling from a country with risk of yellow fever transmission | None |
| Sweden | Not required | None |
| Switzerland | Not required | None |
| Syria | If traveling from a country with risk of yellow fever transmission | None |
| Taiwan | If traveling from a country with risk of yellow fever transmission | None |
| Tajikistan | Not required | None |
| Tanzania | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age. The city of Dar es Salaam has a lower risk of transmission than rural areas. |
| Thailand | If traveling from a country with risk of yellow fever transmission and ≥9 months of age | None |
| Timor-Leste (East Timor) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Togo | Required upon arrival from all countries if traveler is ≥1 year of age | For all travelers ≥9 months of age |
| Tokelau (New Zealand) | Not required | None |
| Tonga | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Trinidad and Tobago | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age whose itinerary includes Trinidad. Port of Spain has lower risk of transmission than rural or forested areas. Cruise ship passengers who do not disembark from the ship or travelers visiting only the urban area of Port of Spain (including passengers in-transit only) may consider foregoing vaccination. Vaccination is NOT recommended for those visiting only Tobago. |
| Tunisia | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Turkey | Not required | None |
| Turkmenistan | Not required | None |
| Turks and Caicos Islands (U.K.) | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Tuvalu | Not required | None |
| Uganda | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | For all travelers ≥9 months of age. |
| Ukraine | Not required | None |
| United Arab Emirates | Not required | None |
| United Kingdom (with Channel Islands and Isle of Man) | Not required | None |
| United States | Not required | None |
| Uruguay | If traveling from a country with risk of yellow fever transmission | None |
| Uzbekistan | Not required | None |
| Vanuatu | Not required | None |
| Venezuela | Not required | For all travelers ≥9 months of age traveling to Venezuela, EXCEPT the northern coastal area (see Map 2-4). The cities of Caracas and Valencia are NOT in the endemic zone. |
| Vietnam | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Virgin Islands, British | Not required | None |
| Virgin Islands, U.S. | Not required | None |
| Wake Island, U.S. | Not required | None |
| Western Sahara | Not required | None |
| Yemen | If traveling from a country with risk of yellow fever transmission and ≥1 year of age | None |
| Zambia | Not required | None |
| Zimbabwe | If traveling from a country with risk of yellow fever transmission | None |
