Understanding Influenza: Causes, Symptoms, and Prevention

Influenza, commonly known as the flu, is a contagious respiratory illness caused by influenza viruses. It affects the nose, throat, and sometimes the lungs, leading to a range of symptoms that can vary from mild to severe. Unlike the common cold, influenza can result in serious health complications, particularly in young children, the elderly, and individuals with weakened immune systems.

 Causes and Transmission

Influenza is primarily spread through respiratory droplets when an infected person coughs, sneezes, or talks. These droplets can be inhaled by others or land on surfaces, where the virus can be transferred to the mouth, nose, or eyes when a person touches their face. The flu virus is highly contagious and can spread rapidly in crowded environments, making it a common seasonal epidemic.

 Symptoms of Influenza

The flu typically comes on suddenly and can cause a variety of symptoms, including:

- Fever and chills

- Cough