Worldwide Spread of Dengue Virus Type 1

Autor(es)

Villabona-Arenas, Christian Julian ^[1] ; de Andrade Zanotto, Paolo Marinho ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Microbiol, Inst Biomed Sci, Lab Mol Evolut & Bioinformat, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PLoS One; v. 8, n. 5 MAY 13 2013.
• Citações Web of Science: 37

Resumo

Background: DENV-1 is one of the four viral serotypes that causes Dengue, the most common mosquito-borne viral disease of humans. The prevalence of these viruses has grown in recent decades and is now present in more than 100 countries. Limited studies document the spread of DENV-1 over the world despite its importance for human health. Methodology/Principal Findings: We used representative DENV-1 envelope gene sequences to unravel the dynamics of viral diffusion under a Bayesian phylogeographic approach. Data included strains from 45 distinct geographic locations isolated from 1944 to 2009. The estimated mean rate of nucleotide substitution was 6.56x10(-4) substitutions/site/year. The larger genotypes (I, IV and V) had a distinctive phylogenetic structure and since 1990 they experienced effective population size oscillations. Thailand and Indonesia represented the main sources of strains for neighboring countries. Besides, Asia broadcast lineages into the Americas and the Pacific region that diverged in isolation. Also, a transmission network analysis revealed the pivotal role of Indochina in the global diffusion of DENV-1 and of the Caribbean in the diffusion over the Americas. Conclusions/Significance: The study summarizes the spatiotemporal DENV-1 worldwide spread that may help disease control. (AU)

• Processo FAPESP: 11/17071-2 - Filogeografia do vírus da dengue nos municípios de Jundiaí e Guarujá no estado de São Paulo
• Beneficiário: Christian Julián Villabona Arenas
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 10/19059-7 - Filogeografia do vírus da dengue nos municípios de Jundiaí e Guarujá no estado de São Paulo
• Beneficiário: Paolo Marinho de Andrade Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Regular