The two new SHFV variants , SHFV - krc1 and SHFV - krc2 are highly divergent from each other ( 51 . 9 % nucleotide sequence identity ) and from the SHFV type strain LVR 42 - 0 / M6941 ( 52 . 0 % and 51 . 8 % nucleotide sequence identity , respectively ) and demonstrate greater phylogenetic diversity within SHFV than has been