Allergy 1 Autoimmune Diseases 1 BCG Vaccine 1 BCG vaccine 1 Bacille Calmette-Guérin vaccine 1 Editorial 1 Humans 1 Hypersensitivity 1 Inflammation 1 Randomized Controlled Trials as Topic 1 T lymphocyte 1 allergic disease 1 autoimmune disease 1 autoimmunity 1 drug mechanism 1 high risk population 1 human 1 hypersensitivity 1 immune response 1 immunization 1 immunotherapy 1 inflammation 1 inflammatory disease 1 inflammatory diseases meta analysis (topic) 1 off-target effect 1 phase 3 clinical trial (topic) 1 randomized controlled trial (topic) 1 risk reduction 1 systematic review (topic) 1