Mammals Preferred: Reassortment of and Occurs in Mammalian but Not Insect Cells.

Reassortment is a viral genome-segment recomposition known for many viruses, including the orthobunyaviruses. The co-infection of a host cell with two viruses of the same serogroup, such as the and the can give rise to novel viruses. One example is the Ngari virus, which has caused major outbreaks of human infections in Central Africa.