What are the symptoms of serious brain complications from influenza in children that parents should watch for?

Parents should watch for initial influenza-like symptoms including fever, muscle aches, and chills, followed by concerning neurological signs like lethargy and decreased consciousness. Dr. Michael Osterholm specifically warns about a 'certain tiredness' and difficulty arousing children, which may indicate serious brain complications from influenza infection. If these symptoms appear, immediate medical attention is critical - either at an emergency room or hospital. With pediatric hospitalizations rising across multiple locations including Boston and Stanford, early intervention is vital to reduce the risk of serious illness and death. The expert emphasizes this information isn't being adequately covered by media or health authorities despite its urgency.