What is Flu? Causes, Symptoms & Prevention Guide (2026)
Influenza, commonly known as the flu, is a contagious respiratory illness caused by influenza viruses. It affects millions of people every year and can range from mild to severe illness.
Flu spreads easily from person to person through coughs, sneezes, or close contact. Understanding the flu and how to prevent it is essential for maintaining good health.
Common Symptoms of Flu
The flu usually appears suddenly and includes high fever, cough, sore throat, runny or stuffy nose, muscle or body aches, headache, and fatigue. In some cases, people may also experience vomiting and diarrhea.
What Causes Flu?
The flu is caused by influenza viruses that infect the nose, throat, and sometimes the lungs. These viruses change frequently, which is why people can get the flu multiple times.
Flu viruses spread through air droplets from coughing or sneezing, touching contaminated surfaces, and close contact with infected individuals.
Who is at Higher Risk?
Some people are more vulnerable to severe flu, including children under 5 years, elderly people over 65, pregnant women, and individuals with chronic diseases.
How to Prevent Flu
You can reduce your risk of getting the flu by washing your hands regularly, avoiding close contact with sick people, wearing a mask in crowded places, getting vaccinated annually, and maintaining a healthy lifestyle.
Treatment Options
Most flu cases can be treated at home with rest and proper hydration. In more serious cases, doctors may prescribe antiviral medications. Basic care includes drinking plenty of fluids, taking enough rest, and using fever reducers if needed.
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Final Thoughts
Flu is a common illness, but it should not be ignored. With proper awareness, prevention, and timely treatment, you can protect yourself and your family. Stay safe and stay healthy.