PT - JOURNAL ARTICLE AU - Sarah Fernández-Suárez AU - Giuliana Reyes-Florian AU - Pablo Vásquez-Hoyos AU - Jesús Angel Domínguez-Rojas TI - Persistent COVID-19 lung infection in a child with a primary immunodeficiency AID - 10.1136/bcr-2021-244768 DP - 2021 Sep 01 TA - BMJ Case Reports PG - e244768 VI - 14 IP - 9 4099 - http://casereports.bmj.com/content/14/9/e244768.short 4100 - http://casereports.bmj.com/content/14/9/e244768.full SO - BMJ Case Reports2021 Sep 01; 14 AB - SARS-CoV-2 infection in children with primary immunodeficiency disease (PID) and its complications have not yet been well described, the course of COVID-19 can range from mild illness to death. We aim to report the case of a child with a PID who develop a severe and persistent pulmonary COVID-19 infection. We present chronologically his clinical course, tests, interventions and radiological findings showing his irregular evolution and poor response to infection. This case highlights the need to accurately monitor the immune response in these cases to try to stop the progression of the damage.