YELLOW FEVER: A SCENARIO FOR THE 21st CENTURY; THE RISK OF REURBANIZATION
SUMMARY
Introduction: Yellow fever is an infectious disease, not contagious, caused by a flavivirus and transmitted by a mosquito, being a disease of high lethality. This disease is characterized by two cycles of transmission, which are the urban cycle and the sylvatic cycle. The urban cycle no longer exists in Brazil, only manifesting itself through the sylvatic cycle in this country. There are other types of cycles, however they occur only on the African continent. Yellow fever has made many victims throughout history, including in the Araraquara city, having an important epidemic during the late++ XIX century. The vaccine was discovered during the XX century, what have changed the epidemiological dynamics of the disease over the population. Objective: To elucidate the central characteristics of yellow fever, making a brief history and showing the dangers of the disease, as a possible epidemic or even a palpable future of reurbanization, then prophylactic measures may be taken. Methodology: SciELO and PubMed were used as database, using the key-words “yellow fever”, “arboviruses”, “Aedes” e “flaviviruses”, consulted in the Health Science Descriptors database. Revision: The antecedents of yellow fever, as well as the etiology of disease, epidemiology, pathogenesis, clinical case, diagnosis, forms of treatment and prevention, as well as a reurbanization of the disease. Conclusion: Yellow fever has a high lethality, and for the prevention of new cases a previous diagnostic evaluation is necessary. Currently we have a resurgence of Aedes sp. promoting a conducive environment for redevelopment of the disease.
KEYWORDS: Yellow Fever; Arboviruses; Aedes; Flavivirus
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