In light of the preserved nature of the RVFV Gn fold architecture with the Gn of another phlebovirus, severe fever with thrombocytopenia syndrome virus31, we propose that our model of RVFV Gn–Gc hetero-dimerisation and higher order assembly (Fig. 2c–e) is likely to be observed across the viruses within the phlebovirus genus. This evidence concerns the gene GC and Fever.