lung infections

Lung infections occur when germs like bacteria, viruses, or fungi enter the lungs, leading to inflammation and symptoms such as cough, fever, and difficulty breathing. Common types include pneumonia, which affects the air sacs in the lungs, and bronchitis, involving inflammation of the airway passages. Risk factors include age, weakened immune systems, and smoking. Treatment often includes rest, fluids, and medications such as antibiotics or antivirals, depending on the cause. It's important to seek medical attention if symptoms are severe or persistent, as some lung infections can lead to serious health complications.