Ключевые слова: ag, analysis, analyzing, antibody, antigen, atk, care, check, diagnosis, disease, doctor, face, flu, hand, health, holding, home, illness, immunity, infection, kit, laboratory, lockdown, mask, medical, medicine, nasal, negative, nose, pandemic, pcr, people, plasma, positive, quarantine, rapid, research, result, sars, self, spread, surgery, swab, test, travel, vaccine, virus,