Homonym: Flu (Influenza)
The flu, short for influenza, is a contagious viral infection that affects the respiratory system. It can cause symptoms like fever, cough, sore throat, body aches, and fatigue. The flu spreads easily from person to person, especially during the colder months when people are more likely to be indoors.
Getting a flu vaccine each year is one of the best ways to protect yourself and others from the virus. While most people recover within a week or two, the flu can lead to serious complications, especially in young children, the elderly, and those with weakened immune systems.