Phylogenetic analysis of Lassa virus sequences.

<p>The sequences of the PCR fragments obtained from positive cases were aligned with published sequences. The latter are identified by GenBank accession numbers. For clarity of presentation, only Nigerian strains are shown. The clusters A, B, and C comprising strains from Edo State and Ondo State were collapsed; these strains are shown separately in <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0001839#pntd-0001839-g006" target="_blank">Figure 6</a>. Posterior probability values are indicated on the branches. The country of origin of Lassa virus strains is indicated by a prefix: IC, Ivory Coast; NIG, Nigeria. If known, State and city is also shown with the strains (FCT, Federal Capital Territory). Sequences highlighted in boldface have been submitted to GenBank (accession nos. JN651366-JN651400). Lassa virus lineages are indicated left. The novel putative lineage/sub-lineage represented by strain Nig05-A08 <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0001839#pntd.0001839-Ehichioya2" target="_blank">[49]</a> is indicated with a question mark.