Publication:
Phylogenetic Analysis of the 2020 West Nile Virus (WNV) Outbreak in Andalusia (Spain)

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Date

2021-05-05

Authors

Casimiro-Soriguer, Carlos S.
Perez-Florido, Javier
Fernandez-Rueda, Jose L.
Pedrosa-Corral, Irene
Guillot-Sulay, Vicente
Lorusso, Nicola
Martinez-Gonzalez, Luis Javier
Navarro-Marí, Jose M.
Dopazo, Joaquin
Sanbonmatsu-Gámez, Sara

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MDPI AG
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Abstract

During recent decades West Nile Virus (WNV) outbreaks have continuously occurred in the Mediterranean area. In August 2020 a new WNV outbreak affected 71 people with meningoencephalitis in Andalusia and six more cases were detected in Extremadura (south-west of Spain), causing a total of eight deaths. The whole genomes of four viruses were obtained and phylogenetically analyzed in the context of recent outbreaks. The Andalusian viral samples belonged to lineage 1 and were relatively similar to those of previous outbreaks which occurred in the Mediterranean region. Here we present a detailed analysis of the outbreak, including an extensive phylogenetic study. As part on this effort, we implemented a local Nextstrain server, which has become a constituent piece of regional epidemiological surveillance, wherein forthcoming genomes of environmental samples or, eventually, future outbreaks, will be included.

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Medical Subject Headings::Health Care::Environment and Public Health::Public Health::Disease Outbreaks
Medical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Genetic Techniques::Sequence Analysis::Sequence Analysis, DNA::DNA Mutational Analysis
Medical Subject Headings::Geographical Locations::Geographic Locations::Europe::Spain
Medical Subject Headings::Diseases::Nervous System Diseases::Central Nervous System Diseases::Central Nervous System Infections::Central Nervous System Viral Diseases::Encephalitis::Encephalitis, Viral::Encephalitis, Arbovirus::West Nile Fever
Medical Subject Headings::Organisms::Viruses::Vertebrate Viruses::RNA Viruses::Encephalitis Viruses::Encephalitis Viruses, Japanese::West Nile virus
Medical Subject Headings::Information Science::Information Science::Classification::Phylogeny

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West Nile virus, Outbreak, Meningoencephalitis, Epidemiology, Phylogeny, Whole genome sequencing, Fiebre del Nilo occidental, Brotes de enfermedades, Meningoencefalitis, Epidemiología, Filogenia, Secuenciación completa del genoma

Citation

Casimiro-Soriguer CS, Perez-Florido J, Fernandez-Rueda JL, Pedrosa-Corral I, Guillot-Sulay V, Lorusso N, et al. Phylogenetic Analysis of the 2020 West Nile Virus (WNV) Outbreak in Andalusia (Spain). Viruses. 2021; 13(5):836.