# Influenza vaccination benefits and clinical findings > Live situation record from CLSTR: https://clstr.news/situations/influenza-vaccination-benefits-and-clinical-findings > Updated: 2026-09-20T23:09:59.000Z. Sources: 5. Developments: 2. Clinical data and medical experts are highlighting the broader benefits of influenza vaccination for high-risk populations. Research presented at the European Respiratory Society Congress, based on the FLUNITY-HD study involving over 466,000 participants, suggests that high-dose influenza vaccines—containing 60 micrograms of antigen per strain—may provide an 8.8% relative reduction in hospitalizations for influenza or pneumonia among elderly individuals with chronic lung diseases compared to standard doses. Additionally, medical officials, including the president of the Spanish Association of Vaccinology, are emphasizing that influenza immunization serves to reduce more than just respiratory symptoms. Vaccination is linked to a reduction in cardiovascular risks, such as myocardial infarction. Experts note that while symptoms may be brief, the infection poses severe risks to the elderly, pregnant women, and those with underlying pathologies, citing UK data where vaccination reportedly prevented approximately 100,000 hospitalizations during the 2024-2025 season. ## Timeline ### 2026-09-20: Influenza vaccination linked to reduced cardiovascular risks Medical expert Jaime Jesús Pérez Martín highlights that influenza vaccination reduces severe complications, including cardiovascular risks and hospitalizations, especially for high-risk groups. 2 sources. https://clstr.news/cluster/influenza-vaccination-linked-to-reduced-cardiovascular-risks ### 2026-09-11: High-dose influenza vaccine reduces hospitalizations in elderly with lung disease A study presented at the ERS 2026 Congress shows a high-dose influenza vaccine may reduce hospitalizations for flu or pneumonia by 8.8% in elderly populations, including those with chronic lung diseases. 3 sources. https://clstr.news/cluster/high-dose-influenza-vaccine-reduces-hospitalizations-in-seniors-with-respiratory-disease --- Cite as: Influenza vaccination benefits and clinical findings. CLSTR, https://clstr.news/situations/influenza-vaccination-benefits-and-clinical-findings