This page provides essential guidance for healthcare professionals on the optimal timing of influenza vaccination. It covers the seasonality of influenza, vaccine effectiveness over time, and WHO recommendations for various high-risk groups. The content aims to help healthcare providers make informed decisions about when to vaccinate their patients for maximum protection during peak influenza activity.

This page highlights the critical relationship between influenza infection and increased cardiovascular risk for healthcare professionals. It presents evidence showing how influenza can trigger heart attacks and strokes, explains the underlying mechanisms, and shares the 2023 ESC guidelines recommending influenza vaccination for all ACS patients. Essential information for clinicians managing patients with or at risk of cardiovascular disease.