Changes in lung function tests in patients with CoVid19 pneumonia

The project consists of a prospective, observational, multicenter study that will evaluate the changes in lung function (forced spirometry, measurement of static lung volumes using plethysmography and carbon monoxide pulmonary diffusion test) that patients admitted with pneumonia will present. by CoVid19 according to the level of severity at 4 and 26 weeks after hospital discharge. Restrictive pulmonary alterations will be confirmed by imaging tests (high resolution chest CT). The presence of immune response phenomena that lead to pulmonary fibrosis will be related to demographic and clinical variables and a series of biological markers, some of them already described as co-participants in the pathogenesis of pulmonary interstitial diseases, specifically of the idiopathic pulmonary fibrosis.