Ключевые слова: agrdt, analyzing, antigen, check, coronavirus, covid, covid19, detection, diagnosis, diagnostic, disease, fever, health, immunity, kit, medical test, nasal, negative, nose, omicron, pandemic, pi, prevention, quarantine, rapid, rapid diagnostic test, rdt, respiratory, result, rhi, saliva test, sample, sarscov2, self, sigma, swab, tau, test, testing, tube, virus, ypsilon,