This research discovered a new virus that infects and alters the behavior of an insect-killing fungus. The virus makes the fungus less effective at infecting insects and changes how it produces various compounds. This has important implications for understanding how viruses affect fungi and potentially for biological pest control. Impacts on everyday life: – Helps understand how viruses affect beneficial fungi used in agriculture – Could influence development of better biological pesticides – Provides insights into virus-host relationships that could apply to human diseases – May lead to new ways to control harmful fungi – Could help improve production of valuable fungal compounds