Bunyavirus Activators

Bunyaviruses are a diverse group of RNA viruses belonging to the family Bunyaviridae. These viruses are known for their segmented, single-stranded, negative-sense RNA genomes, typically comprising three segments named large (L), medium (M), and small (S). This segmentation allows for reassortment of genome segments between different strains, contributing to their genetic diversity and for emerging new pathogens.

Bunyaviruses are arthropod-borne, meaning they are primarily transmitted to humans and animals through vectors such as mosquitoes, ticks, and sandflies. They are responsible for a range of diseases, some of which can be severe or even life-threatening. These diseases include hemorrhagic fevers, encephalitis, and febrile illnesses. Notable members of this family include Hantavirus, which causes Hantavirus Pulmonary Syndrome (HPS) and Hemorrhagic Fever with Renal Syndrome (HFRS), and Rift Valley Fever Virus, which can cause severe disease in both humans and livestock.The structure of bunyaviruses includes an outer envelope with glycoproteins that facilitate entry into host cells. Inside, the viral RNA is encapsulated by the nucleocapsid protein, forming the ribonucleoprotein complex. The L segment typically encodes the RNA-dependent RNA polymerase, the M segment encodes the glycoproteins, and the S segment encodes the nucleocapsid protein. Some bunyaviruses also encode non-structural proteins that play roles in evading the host immune response.