Figure 1.

Phylogenetic relationships for 15 rodent and shrew mammarenavirus strains derived from Shenzhen city, China. The tree, which was based on a 589-bp sequence of the L fragment of the mammarenavirus, was built using a neighbor-joining algorithm implemented in Mega version 7. Bootstrap values (> 70%) are shown at specific nodes. Scale bars reflect the number of nucleotide substitutions per site. The tree is divided between the Old World and New World mammarenaviruses. The strain designations are reflected at each branch. The newly determined Shenzhen rodent and shrew strains are indicated via circles and triangles, respectively.