Ключевые слова: 2, 19, ab, ag, alpha, analyze, analyzing, antibody, antigen, atk, blood, card, cassette, cov, delta, diagnosis, exam, igg, igm, infection, kit, lab, laboratory, medical, mu, nasal, nasopharyngeal, ncov, negative, omicron, pcr, positive, rapid, result, rtpcr, sample, sars, specimen, swab, test, testing, throat, vaccination, vaccine, variant, virus,