Brazil tourists in 2005. In 2005, Rio de Janeiro, Foz do Iguaçu, São Paulo, Florianópolis and Salvador were the most visited cities by international tourists for leisure trips. The most popular destinations for business trips were São Paulo, Rio de Janeiro and Porto Alegre. In 2006 Rio de Janeiro and Fortaleza were the most popular destinations for business trips. Technological research in Brazil is largely carried out in public universities and research institutes, with the majority of funding for basic research coming from various government agencies. Brazil's most esteemed technological hubs are the Oswaldo Cruz Institute, the Butantan Institute, the Air
Oswaldo Cruz Hygiene and Demography in Berlin, Cruz was awarded with the gold medal in recognition of the sanitation of Rio de Janeiro. In 1909, he retired from the position as director general for Public Health, dedicating himself exclusively to the Manguinhos Institute, which has been named after him. From the institute he organized important scientific expeditions, which allowed a better knowledge about the health and life conditions in the interior of the country and contributed to the colonization of regions. Cruz eradicated urban yellow fever in the state of Pará. His sanitation campaign in the state of Amazonas allowed concluding the