Figure (IMAGE) Osaka University Caption The IAE pathogenesis, with severe brain edema caused by IAV, could be established without viral proliferation: Influenza virus protein was produced and accumulated in the influenza virus-infected endothelial cells (EC). Without producing daughter virus, accumulated viral protein induced necrosis of EC and disruption of blood-brain barrier leading to vascular leakage and bleeding. Credit ©2024 Kimura-Ohba Usage Restrictions Credit must be given to the creator. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.