Ключевые слова: 19, africa, african, alpha, america, analyze, analyzing, antibody, antigen, atk, bengal, beta, blood, brazil, brazilian, c12, care, cluster, delta, epsilon, exam, gamma, genome, genotype, health, hybrid, india, indian, laboratory, medical, mutation, nasopharyngeal, positive, sample, south, strain, swab, test, testing, thai, thailand, type, uk, usa, vaccine, variant, virus,