Major infectious diseases

Afghanistan	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria (2016)
American Samoa	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Angola	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, typhoid fever vectorborne diseases: dengue fever, malaria water contact disease: schistosomiasis animal contact disease: rabies (2016)
Anguilla	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Antigua and Barbuda	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Argentina	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Aruba	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Bangladesh	degree of risk: high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: dengue fever and malaria are high risks in some locations water contact disease: leptospirosis animal contact disease: rabies (2016)
Barbados	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Belize	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Benin	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever, malaria, and yellow fever respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Bhutan	degree of risk: high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever (2016)
Bolivia	degree of risk: very high food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne diseases: dengue fever, malaria, and yellow fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Botswana	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria (2016)
Brazil	degree of risk: very high food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne diseases: dengue fever and malaria water contact disease: schistosomiasis note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Burkina Faso	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever, malaria, and yellow fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Burma	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever, malaria, and Japanese encephalitis water contact disease: leptospirosis animal contact disease: rabies (2016)
Burundi	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Cambodia	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever, Japanese encephalitis, and malaria (2016)
Cameroon	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Cape Verde	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Cayman Islands	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Central African Republic	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: malaria and dengue fever respiratory disease: meningococcal meningitis water contact disease: schistosomiasis animal contact disease: rabies (2016)
Chad	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
China	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: Japanese encephalitis soil contact disease: hantaviral hemorrhagic fever with renal syndrome (HFRS) (2016)
Colombia	degree of risk: high food or waterborne diseases: bacterial diarrhea vectorborne diseases: dengue fever, malaria, and yellow fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Congo, Democratic Republic of the	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and trypanosomiasis-gambiense (African sleeping sickness) water contact disease: schistosomiasis animal contact disease: rabies (2016)
Congo, Republic of the	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria and dengue fever animal contact disease: rabies water contact disease: schistosomiasis (2016)
Costa Rica	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne diseases: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Cote d'Ivoire	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis animal contact disease: rabies respiratory disease: meningococcal meningitis (2016)
Croatia	degree of risk: intermediate vectorborne diseases: tickborne encephalitis (2016)
Cuba	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne diseases: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Curacao	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Djibouti	degree of risk: high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever (2016)
Dominica	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Dominican Republic	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
East Timor	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria (2016)
Ecuador	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Egypt	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever water contact disease: schistosomiasis (2016)
El Salvador	degree of risk: high food or waterborne diseases: bacterial and protozoal diarrhea vectorborne diseases: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Equatorial Guinea	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria and dengue fever animal contact disease: rabies (2016)
Eritrea	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever (2016)
Estonia	degree of risk: intermediate vectorborne disease: tickborne encephalitis (2016)
Ethiopia	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever respiratory disease: meningococcal meningitis animal contact disease: rabies water contact disease: schistosomiasis (2016)
Fiji	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Gabon	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Gambia, The	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Ghana	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Grenada	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Guatemala	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Guinea	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis aerosolized dust or soil contact disease: Lassa fever animal contact disease: rabies (2016)
Guinea-Bissau	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Guyana	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Haiti	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Honduras	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Hungary	degree of risk: intermediate vectorborne diseases: tickborne encephalitis (2016)
India	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: dengue fever, Japanese encephalitis, and malaria water contact disease: leptospirosis animal contact disease: rabies (2016)
Indonesia	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria (2016)
Iran	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne diseases: Crimean-Congo hemorrhagic fever (2016)
Iraq	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever (2016)
Jamaica	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Kenya	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria, dengue fever, and Rift Valley fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Laos	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria (2016)
Latvia	degree of risk: intermediate vectorborne diseases: tickborne encephalitis (2016)
Liberia	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis aerosolized dust or soil contact disease: Lassa fever animal contact disease: rabies (2016)
Lithuania	degree of risk: intermediate vectorborne diseases: tickborne encephalitis (2016)
Madagascar	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Malawi	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Malaysia	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne diseases: dengue fever water contact disease: leptospirosis (2016)
Mali	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Marshall Islands	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Mauritania	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Mexico	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne disease: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Micronesia, Federated States of	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Montenegro	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne disease: Crimean-Congo hemorrhagic fever (2016)
Mozambique	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Namibia	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria water contact disease: schistosomiasis (2016)
Nepal	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A and E, and typhoid fever vectorborne disease: Japanese encephalitis, malaria, and dengue fever (2016)
New Caledonia	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Nicaragua	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Niger	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Nigeria	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact diseases: leptospirosis and schistosomiasis respiratory disease: meningococcal meningitis aerosolized dust or soil contact disease: Lassa fever animal contact disease: rabies (2016)
Pakistan	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: dengue fever and malaria animal contact disease: rabies (2016)
Panama	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne disease: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Papua New Guinea	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Paraguay	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Peru	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever, malaria, and Bartonellosis (Oroya fever) note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Philippines	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria water contact disease: leptospirosis (2016)
Poland	degree of risk: intermediate vectorborne disease: tickborne encephalitis (2016)
Puerto Rico	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Russia	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea vectorborne disease: tickborne encephalitis (2016)
Rwanda	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever animal contact disease: rabies (2016)
Saint Barthelemy	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Saint Lucia	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Saint Martin	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Saint Vincent and the Grenadines	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Samoa	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Sao Tome and Principe	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis (2016)
Senegal	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Serbia	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea (2016)
Sierra Leone	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever water contact disease: schistosomiasis animal contact disease: rabies aerosolized dust or soil contact disease: Lassa fever (2016)
Singapore	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Sint Maarten	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Somalia	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: dengue fever, malaria, and Rift Valley fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
South Africa	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever water contact disease: schistosomiasis (2016)
South Sudan	degree of risk: very high food or waterborne disease: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne disease: malaria, dengue fever, trypanosomiasis-Gambiense (African sleeping sickness) water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Sri Lanka	degree of risk: high food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne disease: dengue fever water contact disease: leptospirosis animal contact disease: rabies (2016)
Sudan	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: malaria, dengue fever, and Rift Valley fever water contact disease: schistosomiasis respiratory disease: meningococcal meningitis animal contact disease: rabies (2016)
Suriname	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne disease: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Swaziland	degree of risk: intermediate food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria water contact disease: schistosomiasis (2016)
Tajikistan	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne disease: malaria (2016)
Tanzania	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and Rift Valley fever water contact diseases: schistosomiasis and leptospirosis animal contact disease: rabies (2016)
Thailand	degree of risk: very high food or waterborne diseases: bacterial diarrhea vectorborne diseases: dengue fever, Japanese encephalitis, and malaria (2016)
Togo	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria, dengue fever, and yellow fever respiratory disease: meningococcal meningitis water contact disease: schistosomiasis animal contact disease: rabies (2016)
Tonga	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Trinidad and Tobago	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Turks and Caicos Islands	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Uganda	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A and E, and typhoid fever vectorborne diseases: malaria, dengue fever, and trypanosomiasis-Gambiense (African sleeping sickness) water contact disease: schistosomiasis animal contact disease: rabies (2016)
Venezuela	degree of risk: high food or waterborne diseases: bacterial diarrhea and hepatitis A vectorborne diseases: dengue fever and malaria note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Vietnam	degree of risk: very high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever, malaria, and Japanese encephalitis (2016)
Virgin Islands	note: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Yemen	degree of risk: high food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever and malaria water contact disease: schistosomiasis (2016)
Zambia	degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)
Zimbabwe	degree of risk: high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: malaria and dengue fever water contact disease: schistosomiasis animal contact disease: rabies (2016)

Source: CIA Factbook