Neighbor-joining tree of “Candidatus Neoehrlichia mikurensis” inferred from 874 bp of the groEL gene sequences (A) and 1,303 bp of the rrs gene sequences (B) using the maximum composite likelihood method. Numbers represent the bootstrap support for each node, as a percentage of 1,000 replicates. Sequences identified in the present study are indicated by asterisks. The host species and geographic regions are specified. The genus abbreviations of host species are as follows: A., Apodemus; E., Eothenomys; H., Haemaphysalis; I., Ixodes; M., Myodes; N., Niviventer; R., Rattus; and T., Tamias.