Dataset Information

Convergent trends and spatiotemporal patterns of Aedes-borne arboviruses in Mexico and Central America.

ABSTRACT:

Background

Aedes-borne arboviruses cause both seasonal epidemics and emerging outbreaks with a significant impact on global health. These viruses share mosquito vector species, often infecting the same host population within overlapping geographic regions. Thus, comparative analyses of the virus evolutionary and epidemiological dynamics across spatial and temporal scales could reveal convergent trends.

Methodology/principal findings

Focusing on Mexico as a case study, we generated novel chikungunya and dengue (CHIKV, DENV-1 and DENV-2) virus genomes from an epidemiological surveillance-derived historical sample collection, and analysed them together with longitudinally-collected genome and epidemiological data from the Americas. Aedes-borne arboviruses endemically circulating within the country were found to be introduced multiple times from lineages predominantly sampled from the Caribbean and Central America. For CHIKV, at least thirteen introductions were inferred over a year, with six of these leading to persistent transmission chains. For both DENV-1 and DENV-2, at least seven introductions were inferred over a decade.

Conclusions/significance

Our results suggest that CHIKV, DENV-1 and DENV-2 in Mexico share evolutionary and epidemiological trajectories. The southwest region of the country was determined to be the most likely location for viral introductions from abroad, with a subsequent spread into the Pacific coast towards the north of Mexico. Virus diffusion patterns observed across the country are likely driven by multiple factors, including mobility linked to human migration from Central towards North America. Considering Mexico's geographic positioning displaying a high human mobility across borders, our results prompt the need to better understand the role of anthropogenic factors in the transmission dynamics of Aedes-borne arboviruses, particularly linked to land-based human migration.

SUBMITTER: Gutierrez B

PROVIDER: S-EPMC10506721 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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Publications

Convergent trends and spatiotemporal patterns of Aedes-borne arboviruses in Mexico and Central America.

Gutierrez Bernardo B da Silva Candido Darlan D Bajaj Sumali S Rodriguez Maldonado Abril Paulina AP Ayala Fabiola Garces FG Rodriguez María de la Luz Torre MLT Rodriguez Adnan Araiza AA Arámbula Claudia Wong CW González Ernesto Ramírez ER Martínez Irma López IL Díaz-Quiñónez José Alberto JA Pichardo Mauricio Vázquez MV Hill Sarah C SC Thézé Julien J Faria Nuno R NR Pybus Oliver G OG Preciado-Llanes Lorena L Reyes-Sandoval Arturo A Kraemer Moritz U G MUG Escalera-Zamudio Marina M

PLoS neglected tropical diseases 20230906 9

<h4>Background</h4>Aedes-borne arboviruses cause both seasonal epidemics and emerging outbreaks with a significant impact on global health. These viruses share mosquito vector species, often infecting the same host population within overlapping geographic regions. Thus, comparative analyses of the virus evolutionary and epidemiological dynamics across spatial and temporal scales could reveal convergent trends.<h4>Methodology/principal findings</h4>Focusing on Mexico as a case study, we generated ...[more]

PMID: 37672514

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Dataset Information

Convergent trends and spatiotemporal patterns of Aedes-borne arboviruses in Mexico and Central America.

Background

Methodology/principal findings

Conclusions/significance

Publications

Convergent trends and spatiotemporal patterns of Aedes-borne arboviruses in Mexico and Central America.

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