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Influenza: Symptoms, Transmission, Treatment and Vaccination

Symptoms, transmission, treatment and the science behind annual vaccination

Influenza is a contagious respiratory illness caused by influenza viruses, circulating seasonally and capable of causing mild to severe illness. Vaccination remains the primary prevention tool, with vaccine formulations updated annually to match circulating strains identified through global surveillance. While most people recover with supportive care, antiviral medications and prompt medical attention can reduce complications in higher-risk individuals.