Figure 5.

Elephant endotheliotropic viruses (EEHVs) represent a novel subfamily of mammalian herpesviruses (circled). Radial distance-based phylogenetic tree comparing the amino-acid identity values of the intact U48(glycoprotein-H) proteins of several EEHVs with the orthologous core proteins representative of all major mammalian herpesvirus subfamilies. Because of the lack of a close match to any of the existing defined subfamilies (alpha, beta, and gamma), the EEHV clade (Proboscivirus genus) has been proposed to form a new deltaherpesvirus subfamily (Pellett 2014; Richman et al. 2014; Zong et al. 2014).