Viral infection not responsible for exacerbation of lung disease in most patients

Acute viral infection does not appear to be a primary cause of acute exacerbation of idiopathic pulmonary fibrosis (IPF), a progressive, deadly disease resulting in thickening and scarring of the lungs, according to a study conducted by researchers from the U.S., Korea and Japan. Previous studies had suggested viral infection might cause exacerbation of IPF in a majority of patients who have the condition, which occurs most often in people between 50 and 70 years of age.

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