Researchers have reported a concerning trend of acute necrotizing encephalopathy in US children infected with influenza, resulting in 41 cases and 11 deaths over two flu seasons. The complication involves brain swelling, which can be fatal if left untreated. As of Wednesday, the condition has been linked to unvaccinated children, highlighting the importance of flu vaccination in preventing this rare but potentially deadly disease.
Source: https://www.bloomberg.com/news/articles/2025-07-31/brain-swelling-on-the-rise-in-unvaccinated-kids-with-influenza