The pandemic caused by the SARS-CoV-2 virus has put all public health systems worldwide in check, due to a failure of the detection, alert and control mechanisms of the disease, aggravated by the lack of diagnostic tests. All of this led to community transmission of the virus in most countries, forcing exceptional public health measures to be taken, such as the forced confinement of most of the population to cut the chains of transmission of SARS-CoV-2, unleashing a unprecedented economic and health crisis. Although the diagnosis is microbiological, imaging techniques play an important role in supporting the diagnosis, grading the severity of the disease, guiding treatment, detecting possible complications, and assessing the therapeutic response. Pulmonary function tests are important to evaluate lung sequelae in patients who have suffered from COVID-19. If pulmonary tuberculosis made possible the appearance and development of pneumology based on physiology, the new COVID-19 pandemic has generated radical changes in the way of approaching respiratory pathology, making it necessary to incorporate new tools such as the telemedicine, simplifying the healthcare process and optimizing healthcare resources. COVID-19 has given us a bath of reality and has changed our lives, as doctors and as a society. Respiratory support measures, high-flow systems and devices that combine different modalities of oxygen and Positive End-Expiratory Pressure have been key to avoiding the death of a large number of patients, avoiding many admissions to the Intensive Care Units and helping to decongest these units in a way much faster. This would not have been possible without the creation of the Respiratory Intermediate Care Units that should be promoted in all Pulmonology Services.