 The genome of KFDV is very similar (>92% homologous) to that of Alkhurma Hemorrhagic Fever Virus which is primarily found in Saudi Arabia.These two species both belong to the family "Flaviviridae" and diverged over 700 years ago and have thus remained geographically separated.A variety of animals are thought to be reservoir hosts for the disease, including porcupines, rats, squirrels, mice, and shrews.