Figure 1.

Phylogenetic relationships between arenaviruses. The Old World (OW) virus lineage is depicted in red, and New World (NW) lineages are subdivided into clades: A (green), B (blue), C (gray) and a recombinant A-B lineage (purple). This phylogenetic tree is based on amino-acid comparisons of the GPC. Red stars that follow virus names indicate the ability to infect humans: ** denote lethal hemorrhagic fever viruses and lymphocytic choriomeningitis virus (LCMV), and * identifies infections with few or no clinical manifestations [1]. This image is adapted from [1] and used by permission.