Figure 2.

Bunyavirales Generalized Virion. Although bunyaviruses can vary in number of genomic segments and glycoprotein dimer structure, all viruses share a similar structure. Nucleocapsid proteins coat the single-stranded anti-sense RNA genomes and along with the RNA-dependent RNA-polymerase form ribonucleoproteins on each segment. The genomic segments are packaged in an enveloped virion studded with the viral glycoproteins. The genomic small, medium, and large segments are labeled S, M, and L, respectively.