This information supports, and does not replace, advice from your healthcare professional.
Overview
Influenza (flu) is a contagious respiratory illness caused by influenza viruses, affecting the nose, throat, and lungs.
Symptoms
Fever and chills Cough and sore throat Runny or stuffy nose Muscle or body aches Fatigue
Causes
Infection with influenza virus types A, B, or C Spread through droplets from coughs or sneezes
Diagnosis
Medical history and symptom assessment Rapid influenza diagnostic tests (RIDTs) PCR tests in some cases
Treatment
Rest and fluid intake Antiviral medications if prescribed Over-the-counter pain and fever reducers
Prevention
Annual flu vaccination Hand hygiene and respiratory etiquette Avoiding close contact with sick individuals