Lien, 42, suffered severe immunodeficiency after lymphoma treatment, with tests confirming lung damage from co-infection by five types of viruses, bacteria, and fungi.

Poor oral hygiene, lack of sleep, chronic stress, excessive alcohol consumption, and regular exposure to polluted air all increase the risk of lung disease.

Does mold growth increase the risk of hypersensitivity pneumonitis in sensitive individuals, and what is this condition? (Thu Ha, Ha Noi)

Manh, 50, experienced shortness of breath and a cough for a month, initially thinking it was a lung condition, but doctors diagnosed a nearly blocked coronary artery and heart failure.

Ms. Mai, 86, developed a cough and chest tightness for 6 days, diagnosed with pneumonia progressing to acute respiratory failure.

Five-year-old Trung suffered from high fever, coughing up phlegm, and a runny nose; doctors diagnosed bacterial lobar pneumonia.

hanoi and many northern provinces have recorded air quality index (AQI) levels exceeding 200 this winter, an emergency warning level that poses severe risks to lung and cardiovascular health.