Tracing the trajectories of SARS-CoV-2 variants of concern between December 2020 and September 2021 in the Canary Islands (Spain).
Author
Valenzuela Fernández, Agustín; Ciuffreda, Laura; Gonza´lez Montelongo, Rafaela; Alcoba Florez, Julia; Garc´ıa Mart´ınez de Artola, Diego; Gil Campesino, Helena; Rodr´ıguez Pe´rez, Héctor; I´ñigo Campos, Antonio; De Miguel Mart´ınez, Isabel; Tosco Núñez, Tomás; D´íez Gil, Óscar; Lorenzo Salazar, José M..; Flores, CarlosDate
2022Abstract
Several variants of concern (VOCs) explain most of the severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) epidemic waves in Europe. We aimed
to dissect the spread of the SARS-CoV-2 VOCs in the Canary Islands (Spain)
between December 2020 and September 2021 at a micro-geographical level.
We sequenced the viral genome of 8,224 respiratory samples collected in the
archipelago. We observed that Alpha (B.1.1.7) and Delta (B.1.617.2 and
sublineages) were ubiquitously present in the islands, while Beta (B.1.351) and
Gamma (P.1/P.1.1) had a heterogeneous distribution and were responsible for
fewer and more controlled outbreaks. This work represents the largest effort
for viral genomic surveillance in the Canary Islands so far, helping the public
health bodies in decision-making throughout the pandemic.