AIDS: acquired immunodeficiency syndrome; CAR-T: chimeric antigen receptor T; COVID-19: coronavirus disease 2019; ECMO: extracorporeal membrane oxygenation; HFNC: high-flow nasal cannula; HIV: human immunodeficiency virus; IV: intravenous; MIS-C: multisystem inflammatory syndrome in children; NIV: noninvasive ventilation.
* Manifestations of clinical deterioration include severe respiratory distress, difficulty breathing, chest pain or pressure, blue lips or face, signs and/or symptoms of shock, and inability to drink or keep down any liquids.
¶ Moderate and severe immunocompromising conditions include:Δ Refer to related UpToDate content on the management of COVID-19 in children for a list of underlying conditions that increase risk of progression to severe disease.