secondary pneumonia

Secondary pneumonia occurs when an existing illness, like the flu or another infection, weakens the immune system, making it easier for bacteria, viruses, or fungi to infect the lungs. This additional infection causes inflammation in the lung tissues, leading to symptoms such as cough, fever, chest pain, and difficulty breathing. It often occurs after the primary illness has started to improve, complicating recovery. Treatment usually involves antibiotics or antiviral medications, depending on the cause, and addressing the initial illness to help the body recover fully.