Wetland virus exposes blind spots in orthonairovirus pathogenesis.

Wetland virus triggers caspase-3-gasdermin E pyroptosis and hepatic lipid accumulation, revealing key gaps in orthonairovirus pathogenesis.

• Why it matters: Understanding how orthonairoviruses cause disease is crucial for developing effective treatments, especially as these viruses are emerging in East Asia and their mechanisms are poorly understood.
• What they did: Wang et al. studied the effects of Wetland virus and found it converges on inducing pyroptosis via caspase-3 and gasdermin E, while also promoting fatty acid synthase-dependent hepatic lipid buildup.
• The result: This work links cell death pathways to metabolic injury and highlights critical gaps in understanding orthonairovirus pathogenesis, informing future host-directed therapy strategies.