FIG. 2.

Phylogenetic analysis comparing the new CvHV2 isolate (Norway isolate 4), obtained from a reindeer with a clinical case of IKC, with previous Norwegian (Norway isolates 1 to 3) and Finnish (CvHV2 Salla 82) reindeer isolates, as well as with corresponding sequences from other alphaherpesvirus isolates and host species (GenBank). The analysis is based on a 577-bp fragment of the US8 gene, encoding gE. Phylogenetic relationships were inferred using the neighbor-joining method. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1,000 replicates) is shown next to each branch. The unrooted tree is drawn to scale, with branch lengths in the same units as the evolutionary distances used to infer the phylogenetic tree (nucleotide differences). All positions containing gaps and missing data were eliminated from the data set (complete-deletion option). BuHV1, bubaline herpesvirus 1; CpHV1, caprine herpesvirus 1.