Flu Is a Viral Infection, Not an Injury

The flu (influenza) is a viral respiratory infection, not an injury. It causes systemic symptoms: fever, cough, sore throat, runny nose, body aches, fatigue, and sometimes gastrointestinal upset. It spreads via respiratory droplets. Treatment focuses on symptom relief, antivirals (if early), and complications prevention (pneumonia). Vaccination reduces risk and severity.