Pneumonia is an inflammation of the lung parenchyma and can be caused by a variety of pathogens, such as bacteria, viruses, fungi, parasites, etc. Other factors such as radioactivity, chemicals, and allergies can also cause pneumonia. (2) Aerobic Gram-staining positive cocci, such as Streptococcus pneumoniae (i.e., pneumococcus), Staphylococcus aureus, Streptococcus hemolyticus A, etc. (3) aerobic Gram staining negative bacteria, such as Klebsiella pneumoniae, Haemophilus influenzae, Escherichia coli, Pseudomonas aeruginosa, etc. (4) anaerobic bacilli such as rod-shaped bacilli, clostridium difficile, etc. 2, viral pneumonia: such as adenovirus, respiratory syncytial virus, influenza virus, measles virus, cytomegalovirus, herpes simplex virus, etc. 3, mycoplasma pneumonia: caused by Mycoplasma pneumoniae. 4, fungal pneumonia: such as Candida albicans, Aspergillus, actinomycetes, etc. 5, pneumonia caused by other pathogens: such as rickettsia (such as Q fever rickettsia), chlamydia (such as Chlamydia psittaci), toxoplasma (such as Toxoplasma gondii), protozoa (such as Pneumocystis carinii), parasites (such as pulmonary encystment, pulmonary schistosomes, pulmonary schistosomes), etc. People with low immunity (such as AIDS patients) are prone to pulmonary infections such as Pneumocystis carinii, Legionella, Mycobacterium avium, Mycobacterium tuberculosis, and Toxoplasma gondii. The treatment of pneumonia is based on anti-infection and symptomatic treatment of cough and phlegm. Streptomycin is an aminoglycoside antibiotic that inhibits Mycobacterium tuberculosis and Escherichia coli. Fructose and immunoglobulin can enhance immunity.