https://orcid.org/0000-0001-5521-6448
Figures & data
Figure 1. Return of the CHIKV-ECSA genotype into Bahia state northeast Brazil. (A) Spatial estimation of index P across the Bahia state, with Salvador, Feira de Santana and Vitoria da Conquista identified. Each pixel is the yearly mean index P (≈ 20 Km2) estimated using WorldClim V2 dataset as in [Citation5]. Values coloured according to scale on the left. (B) Molecular clock phylogeny obtained using 20 new CHIKV near-complete genome sequences from the 2017–2018 epidemic in the municipality of Feira de Santana (black tips). Salvador, Camaçari, Coração de Maria, Conceição do Jacuipe, Coaraci, Itamarajú e Ipecaetá, in the Bahia State, Northeastern Brazil plus 47 publicly available Brazilian CHIKV-ECSA lineage sequences. Numbers along branches represent clade posterior probability >0.90. Colours represent different locations. (C) Weekly number of laboratory confirmed cases of CHIKV between 2016 and 2018, superimposed with daily mean index P and 95% confidence interval (second Y axis). At the bottom, black bars indicate the collection dates of the viral genome sequences (n = 20) generated in this study.
![Figure 1. Return of the CHIKV-ECSA genotype into Bahia state northeast Brazil. (A) Spatial estimation of index P across the Bahia state, with Salvador, Feira de Santana and Vitoria da Conquista identified. Each pixel is the yearly mean index P (≈ 20 Km2) estimated using WorldClim V2 dataset as in [Citation5]. Values coloured according to scale on the left. (B) Molecular clock phylogeny obtained using 20 new CHIKV near-complete genome sequences from the 2017–2018 epidemic in the municipality of Feira de Santana (black tips). Salvador, Camaçari, Coração de Maria, Conceição do Jacuipe, Coaraci, Itamarajú e Ipecaetá, in the Bahia State, Northeastern Brazil plus 47 publicly available Brazilian CHIKV-ECSA lineage sequences. Numbers along branches represent clade posterior probability >0.90. Colours represent different locations. (C) Weekly number of laboratory confirmed cases of CHIKV between 2016 and 2018, superimposed with daily mean index P and 95% confidence interval (second Y axis). At the bottom, black bars indicate the collection dates of the viral genome sequences (n = 20) generated in this study.](/cms/asset/a81cbe97-ade8-4490-92f3-924751fd26a4/temi_a_1701954_f0001_oc.jpg)
Supplemental Material
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New genome sequences obtained in this study have been deposited in GenBank under accession numbers MK156053 - MK156056; MK156058 - MK156064; MK752950 - MK752958.
