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Land and climate suitability for West Nile virus in Atlantic archipelagos guide...

West Nile (WNV) is a zoonotic mosquito-borne virus with an expanding geographical and epidemic activity worldwide. Computational studies have contributed to the understanding of factors driving WNV occurrence, particularly in North America and Europe. Archipelagos have largely been overlooked, despite the risk to unique local avian species and human populations. In this study, we apply an ecological niche appro...

The historical ecological background of West Nile virus in Portugal indicates O...

West Nile (WNV) is a zoonotic arbovirus with an expanding geographical range and epidemic activity in Europe. Not having yet experienced a human-associated epidemic, Portugal remains an outlier in the Mediterranean basin. In this study, we apply ecological niche modelling informed by WNV historical evidence and a multitude of environmental variables from across Portugal. We identify that ecological backgrounds ...

The seasonality and spatial landscape of the historical climate-based suitabili...

While archipelagos have a demonstrated role in the stepping-stone process of the global dissemination of Aedes-borne viruses, they are often neglected in epidemiological and modelling studies. Over the past 20 years, some Atlantic archipelagos have witnessed a series of Aedes-borne viral outbreaks, prompting inquiries into the local historical suitability for transmission. In this study, the climate-based suita...

Shifting dynamics of Dengue virus serotype 2 and emergence of cosmopolitan geno...

Dengue remains a major public health challenge. In Costa Rica, we implemented nationwide genomic surveillance to track dengue virus serotype 2 cosmopolitan genotype emergence. Phylogenetic and eco-epidemiologic analyses revealed early detection, climate-driven spread, and spatial heterogeneity. Our findings underscore the need for integrated surveillance to guide adaptive responses to emerging arboviral threats.

Chikungunya in Brazil: vaccination strategies informed by mathematical modelling

Travel-associated international spread of Oropouche virus beyond the Amazon

Oropouche virus (OROV), first detected in Trinidad and Tobago in 1955, was historically confined to the Brazilian Amazon Basin. However, since late 2022, an increasing number of OROV cases have been reported across various regions of Brazil as well as in urban centers in Bolivia, Ecuador, Guyana, Colombia, Cuba, Panama, and Peru. In collaboration with Central Public Health Laboratories across Brazil, we integra...

Establishing a dengue genomic monitoring in Cuba: uncovering virus dynamics to ...

Background: A major dengue outbreak was reported by the Cuban Ministry of Health in 2022, highlighting the need for strong surveillance, with high pediatric cases showing warning signs. Using phylogenetic and epidemiologic approaches, we provide evidence toward a better understanding of dengue's recent transmission history. Methods: This study details the implementation of the genomic surveillance system for De...

Reemergence of yellow fever virus in forest and periurban settings in Brazil

Background: Yellow fever virus remains a major public health threat in Brazil, where recent resurgence risks affecting both forest and periurban populations. Understanding viral movement across ecological settings is critical to support early detection and prevent outbreaks. Methods: We performed genomic surveillance in two Brazilian states, a northern Amazon region and a southeastern region, between 2023 and 2...

The historical ecological background of West Nile virus in Portugal provides On...

West Nile (WNV) is a zoonotic arbovirus with an expanding geographical range and epidemic activity in Europe. Not having yet experienced a human-associated epidemic, Portugal remains an outlier in the Mediterranean basin. In this study, we apply ecological niche modelling informed by WNV historical evidence (1969-2022) and a multitude of environmental variables from across Portugal. We identify that ecological ...

Genomics-based timely detection of dengue virus type I genotypes I and V in Uru...

This study details a genomics-based approach for the early detection of mosquito-borne pathogens, marked by Uruguay's first ever complete genomic sequencing of Dengue Virus type I genotypes I and V. This pioneering effort has facilitated the prompt identification of these genotypes within the country, enabling Uruguayan public health authorities to develop timely and effective response strategies. Further integ...