How does viral pneumonia grow?

Viral pneumonia occurs when viruses infect the lung tissues, leading to inflammation and fluid accumulation in the air sacs (alveoli). Common viruses that cause this condition include influenza, respiratory syncytial virus (RSV), and coronaviruses. The infection typically starts in the upper respiratory tract and can spread to the lungs, causing symptoms like cough, fever, and difficulty breathing. The body’s immune response to the viral infection can further exacerbate inflammation and hinder gas exchange in the lungs.