Ключевые слова: 19, analysis, antibody, antigen, blue, buffer, care, clinic, corona, coronavirus, cotton stick, covid, covid19, delta variant, detection, device, diagnosis, diagnostic, disease, equipment, extraction, health, home, hospital, infection, investigation, kit, lab, laboratory, medical, nasal, nasopharyngeal, pcr, rapid, research, result, rtpcr, sample, sars, sarscov2, self, set, sterile, supply, swab, test, throat, treatment, tube, virus,