Brazil visas-continued..

Once arriving in Brazil, tourists will be asked to present the customs form filled out by you during your flight.
The “Accompanied Baggage Declaration” or DBA (Declaracao de Bagagem) must be made at the “Goods to Declare” desk
If you possess any of the following: -
Animals, plants, seeds, foodstuffs and medication subject to health inspection, weapons and ammunition.
- Other goods when the visitor wants to get proof of their admittance into Brazil.
- Goods subject to the regime of temporary importation when their listing on the DBA is required (example, goods worth over U.S. $3,000).
- Goods not considered by Brazilian law as baggage (such as goods brought for commercial or industrial purposes).
- Valuables (cash, checks, travelers checks) worth over R$10,000 or equivalent in foreign currency.
Usually vaccinations against Yellow Fever are not required when traveling to Brazil but there are some exceptions and some recommendations.
For persons arriving from or having passed thru the following countries, within three months, a Yellow Fever International Immunization Certificate will be required. These certificates take 10 days to become effective and are valid for 10 years.
- Angola, Benin, Bolivia, Burkina, Cameroon, Columbia, Congo, Ecuador, Guyana, Gabon, Gambia, Ghana, Guinea, Liberia, Nigeria, Peru, Sierra Leone, Sudan, Venezuela and Zaire. It is recommended however that all travelers anticipating the visitation to the following states in Brazil be vaccinated. - Acre, Amazonas, Amapa, Distrito Federal, Goias, Maranho, Mato Grasso do Sul, Para, Rondonia and Tocantins. Once returning to the U.S. visitors must be in compliance with U.S. Customs. Residents may bring home U.S.$400.00 worth of foreign goods duty free.

Source : brazil travel vacation