Primary immunodeficiency diseases.(1) Pernio erythema(1) Cytokine storm(1) mycobacteria(1) vasculitis.(1) Neurological disorders(1) SARS-CoV-2(1) acute respiratory distress syndrome(1) Bacillus Calmette-Guérin vaccine(1) skin(1) COVID-19(1) Coronavirus infections(1) Interleukins(1) SARS-CoV-2.(1)