Pneumonia refers to inflammation of the terminal airways, alveoli, and interstitial lungs. It can be caused by pathogenic microorganisms such as bacteria, viruses, fungi, parasites, and physical and chemical factors such as radiation and inhalation foreign bodies. The main clinical symptoms are fever, cough, cough, blood in the sputum, chest pain or difficulty breathing. In children with pneumonia, the symptoms are often not obvious and may have a mild cough. Bacterial pneumonia is treated with antibiotics and can be cured in 7 to 10 days. The condition of viral pneumonia is slightly milder and antibiotic treatment is ineffective.
