Epidemiological and Clinical Aspects of Yellow Fever in Brazil

Yellow fever is an endemic disease in the tropical regions of the Americas and Africa. The sylvatic form is transmitted mainly between monkeys and by mosquitoes of the Haemogogus and Sabethes genera, although humans can become infected when they enter this ecosystem. The urban form has Aedes aegypti as its main vector and is spread through human-mosquito-human transmission. It is an acute, febrile, non-contagious infectious disease of short duration (a maximum of 12 days) and variable severity. It is produced by an arbovirus of the genus Flavivirus, family Flaviviridae. The disease remains endemic and enzootic in various tropical regions of the Americas and Africa, and is responsible for periodic outbreaks of varying magnitude. More information on the subject can be found throughout this book. Happy reading.