Fig 1. Location of sites and phylogenetic tree of herpesvirus lineages found in gorillas and chimpanzees.

A. Map of the Republic of Congo showing the location of Odzala-Kokoua National Park (arrow) and the study area (yellow box). B. Shows the 12 sites where the samples were collected. Blue dots show where each sample was collected and the crosses show the extent of the survey sites. C. Phylogenetic tree of betaherpesviruses found in gorillas and chimpanzees. The tree was constructed through a nucleotide alignment of the herpesvirus CMV glycoprotein B gene using Bayesian analysis. Sample identification (WDG number) and Genbank accession numbers are shown. Bayesian posterior probabilities of branching demonstrate the robustness of the individual groups. Tupaiid herpesvirus 1 was used as the outgroup.