放狗查了一下：
meta- often signifies “change” or “alteration” as in the words metamorphic or metabolic.
Human metapneumovirus (hMPV) is a respiratory virus that can cause pneumonia =》（偏肺病毒）
interstitial pneumonia （間質性肺炎）is a lung disease that can cause shortness of breath, cough, and chest discomfort,
導致間質性肺炎 的原因很多，有 infections: Bacteria, viruses, or fungi can infect the interstitium.
Medications: Some drugs, such as those used to treat cancer, heart problems, inflammatory conditions, and urinary tract infections, can damage the lungs.
- Environmental and occupational exposures: Inhaling irritants like asbestos, silica dust, talc, coal, metal dust, grain dust, mold spores, or animal proteins can cause interstitial lung disease.
- Autoimmune diseases: Conditions like lupus, rheumatoid arthritis, sarcoidosis, and scleroderma can cause interstitial lung disease.
- Heredity: Some forms of pulmonary fibrosis (PF) are hereditary.
- Radiation treatments: Radiation treatments to the chest can cause lung scarring.
- Unknown causes:
