Phylogenetic distance–based dendrograms showing patterns of DNA level divergence and subtyping among Indian elephant endotheliotropic herpesvirus (EEHV1) cases (boxed in orange) in comparison with prototype examples of EEHV1A, EEHV1B, EEHV6, and EEHV2 at the four most variable PCR sequence loci: (A) U71/gM, (B) U77/HEL, (C) U51/vGPCR1, and (D) U48/gH-TK. Bootstrap values are indicated at branch points.