It was right in the beginning of the COVID-19 pandemic that doctors realized that a thorax radiography – a very common imaging exam made by X-rays – is most valuable for a rapid diagnosis of the disease , and the evaluation of its extension and sequels. The images obtained in this exam show clearly the devastating effects of the infection by SARS-CoV-2 virus on the lungs. On the other hand, there is growing evidence of the long-lasting effects of COVID-19 and the need to keep these patients under surveillance and testing. On this topic, listen to the Hospital da Luz Podcast with Augusto Gaspar , radiologist and director of Hospital da Luz Lisboa Imaging Centre. Google | iTunes | Spotify The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.