Journal
ACTA TROPICA
Volume 166, Issue -, Pages 114-120Publisher
ELSEVIER
DOI: 10.1016/j.actatropica.2016.09.030
Keywords
Yellow fever virus; Wild-type strain; Brazil; Epizootic
Categories
Funding
- CNPq fellowship
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During a series of epizootics caused by Yellow fever virus in Brazil between 2007 and 2009, a monkey was found dead (May 2009) in a sylvatic area in the State of Parana. Brain samples from this animal were used for immunohistochemical analysis and isolation of a wild-type strain of YFV. This viral strain was characterized, and sequence analyzes demonstrated that it is closely related with YFV strains of the recently identified subclade 1E of the South American genotype I. Further characterization included indirect-immunofluorescence of different infected cell lines and analysis of the kinetics of virus replication and infectivity inhibition by type I IFN. The generated data contributes to the knowledge of YFV evolution and phylogeny. Additionally, the reagents generated and characterized during this study, such as a panel of monoclonal antibodies, are useful tools for further studies on YFV. Lastly, this case stresses the importance of yellow fever surveillance through sentinel monkeys. (C) 2016 Elsevier B.V. All rights reserved.
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