Ключевые слова: 2, 19, 2019, ab, ag, analyze, analyzing, antibody, antigen, blood, care, certificate, check, checkup, coronavirus, cov, covid, covid19, diagnosis, exam, form, health, igg, igm, infection, laboratory, medical, medicine, nasopharyngeal, ncov, negative, pcr, permit, positive, rapid, reactive, report, result, rt, rtpcr, sample, sars, sarscov2, swab, test, testing, throat, up, virus, work,