Ключевые слова: antigen, antigen test, care, concept, cotton swab, device, disease, drop, epidemic, equipment, fast, health, healthy, holding, home, illness, immune system, immunity, infection, kit, liquid, medical, medicine, nasal, negative, nose, outbreak, pandemic, pcr, people, positive, quarantine, rapid, result, rt pcr, sars, science, selftest, selftesting kit, simple, step, swab, testing, tube, viral, virus,