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Volume 25, Number 10—October 2019
Research Letter

Lassa Virus in Pygmy Mice, Benin, 2016–2017

Anges Yadouleton, Achaz Agolinou, Fodé Kourouma, Raoul Saizonou, Meike Pahlmann, Sonia Kossou Bedié, Honoré Bankolé, Beate Becker-Ziaja, Fernand Gbaguidi, Anke Thielebein, N’Faly Magassouba, Sophie Duraffour, Jean-Pierre Baptiste, Stephan Günther, and Elisabeth Fichet-CalvetComments to Author 
Author affiliations: Laboratoire des Fièvres Hémorragiques Virales, Cotonou, Benin (A. Yadouleton, A. Agolinou); Ministry of Health, Cotonou (A. Yadouleton, H. Bankolé, F. Gbaguidi); Laboratoire des Fièvres Hémorragiques Virales, Conakry, Guinea (F. Kourouma, N. Magassouba); World Health Organization, Cotonou (R. Saizonou, S.K. Bedié, J.-P. Baptiste); Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany (M. Pahlmann, B. Becker-Ziaja, A. Thielebein, S. Duraffour, S. Günther, E. Fichet-Calvet)

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Figure

Bayesian phylogenetic analyses based on nucleotide sequences of the partial glycoprotein and nucleoprotein genes of Lassa virus (LASV), showing the placement of the new sequences (in boldface) isolated from Mus baoulei pygmy mice, in comparison with other sequences representing the members of LASV lineages I–IV. A) Glycoprotein, 1,408 nt; B) nucleoprotein, 1,654 nt. The trees are rooted by Gbagroube, a LASV-like virus isolated from Mus setulosus mice in Côte d’Ivoire. Statistical support of grou

Figure. Bayesian phylogenetic analyses based on nucleotide sequences of the partial glycoprotein and nucleoprotein genes of Lassa virus (LASV), showing the placement of the new sequences (in boldface) isolated from Mus baoulei pygmy mice, in comparison with other sequences representing the members of LASV lineages I–IV. A) Glycoprotein, 1,408 nt; B) nucleoprotein, 1,654 nt. The trees are rooted by Gbagroube, a LASV-like virus isolated from Mus setulosus mice in Côte d’Ivoire. Statistical support of grouping from Bayesian posterior probabilities is indicated at the nodes. Country, strain names, and GenBank accession numbers are indicated on the branches. The analysis was inferred by using the Bayesian Markov chain Monte Carlo method implemented in BEAST (8). The following settings were used: general time reversible plus gamma, strict clock, and constant population. Markov chain Monte Carlo chains were run for 10 million states and sampled every 10,000 states to obtain an effective sample size >200 for all parameters. The new viral and murine sequences are deposited under accession nos. MH028396–404. Scale bars indicate nucleotide substitutions per site.

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