Flu

Influenza (flu or trangkaso) is a contagious respiratory illness caused by influenza viruses. It spreads through droplets when people cough, sneeze, or touch contaminated surfaces. Flu symptoms often develop suddenly and can include fever, chills, cough, sore throat, runny or stuffy nose, muscle aches, fatigue, and headaches. Some may also experience vomiting or diarrhea, though this is more common in children.