 Additionally, Hantaviruses seem to cause no detectable cytopathology in vertebrate cell cultures.The spherical virion of the Hantavirus is typically 80-120 nm long and contains the segmented single-stranded genome.The tri-segmented genome includes a S (small), M (medium), and L (large) segment that code for nucleocapsid (N), glycoproteins G1 and G2, and L protein respectively.