YELLOW FEVER

Certificate of vaccination against yellow fever is a compulsory requirement for the issuance of visa to travelers entering Brazil from:

Angola;
Benin, Bolivia, Burkina Faso, Burundi;
Cameroon, Central African Republic, Chad, Colombia, Cotê d'Ivoire;
Democratic Republic of the Congo,
Ecuador, Ethiopia, Equatorial Guinea;
French Guyana;
Gabon, Gambia, Ghana, Guyana, French Guyana, Guinea, Guinea Bissau;
Kenya;
Liberia;
Mali, Mauritania;
Niger, Nigeria;
Panama, Peru;
Rwanda, Republic of the Congo;
São Tomé and Príncipe, Senegal, Sierra Leone, Somalia, Sudan, Suriname;
Tanzania, Togo, Trinidad and Tobago;
Uganda;
Venezuela.

POLIO

Vaccination against polio is also recommended for travelers with destination to the Federal District (surrounding areas of Brasilia) and the following North, Northeast and Midwest Brazilians states:

Acre, Amazonas, Amapá;
Goiás;
Maranhão, Mato Grosso, Mato Grosso do Sul;
Pará;
Rondônia, Roraima; and
Tocantins.

Also, certificate of vaccination against polio is a compulsory requirement for issuing visas for children aged between 3 moths and six years.