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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reemergence of Yellow Fever in Brazil: The Role of Distinct Landscape Fragmentation Thresholds

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Ilacqua, Roberto C. [1] ; Medeiros-Sousa, Antonio R. [2] ; Ramos, Daniel G. [3] ; Obara, Marcos T. [4] ; Ceretti-Junior, Walter [2] ; Mucci, Luis F. [5] ; Marrelli, Mauro T. [2] ; Laporta, Gabriel Z. [1]
Total Authors: 8
[1] Fdn ABC, Ctr Univ FMABC, Setor Posgrad Pesquisa & Inovacao, Santo Andre, SP - Brazil
[2] Univ Sao Paulo FSP USP, Fac Saude Publ, Dept Epidemiol, Sao Paulo, SP - Brazil
[3] Minist Saude MS, Coordenacao Geral Vigilancia Arboviroses, Brasilia, DF - Brazil
[4] Univ Brasilia UNB, Fac Ceilandia, Brasilia, DF - Brazil
[5] Secretaria Estado Taubate, Superintendencia Controle Endemias SUCEN, Taubate, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Web of Science Citations: 0

Yellow Fever Virus (YFV) reemergence in Brazil was followed by human suffering and the loss of biodiversity of neotropical simians on the Atlantic coast. The underlying mechanisms were investigated with special focus on distinct landscape fragmentation thresholds in the affected municipalities. An ecological study in epidemiology is employed to assess the statistical relationship between events of YFV and forest fragmentation in municipal landscapes. Negative binomial regression model showed that highly fragmented forest cover was associated with an 85% increase of events of YFV in humans and simians (RR = 1.85, CI 95% = 1.24-2.75, p=0.003) adjusted by vaccine coverage, population size, and municipality area. Intermediate levels of forest cover combined with higher levels of forest edge densities contribute to the YFV dispersion and the exponential growth of YF cases. Strategies for forest conservation are necessary for the control and prevention of YF and other zoonotic diseases that can spillover from the fragmented forest remains to populated cities of the Brazilian Atlantic coast. (AU)

FAPESP's process: 18/25437-6 - Study of potential vectors and ecological factors associated with the emergence and circulation of yellow fever in Brazil
Grantee:Mauro Toledo Marrelli
Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants