H1N1 experience at the Institute for Infectious Diseases Emilio Ribas, Sao Paulo, Brazil. The role of a travel clinic as sentinel for emerging diseases

摘要

Background: According to WHO figures, by November 8 more than 503,536 cases of pandemic influenza had been confirmed and more than 6,260 deaths had been reported. Most cases came from the Americas which also presented the highest number of deaths. South America was severely affected by the transmission of H1N1 and big efforts made to control its dissemination and assist severe cases. Before July 16, when sustained transmission of pandemic influenza H1N1 was recognized in Brazil, most cases were travel related.