In our study, the expression of cyclin-dependent kinase inhibitor 1B (CDN1B), cyclin-dependent kinase 6 (CDK6) and cyclin-dependent kinase 1 isoform 1 (CDK1) was found to be downregulated during aMPV/C infection in Vero cells (Table 1). The gene discussed is CDKN1B; the disease is infection.