not-yet-known not-yet-known not-yet-known unknown To assess the genetic variability of the PCR amplicons obtained from 34 NSCLC samples, the amplified products were subjected to DNA sequencing (Figure 1 and Figure 2). All the sequences were identified as belonging to the MCPyV genome and were compared to those of six strains from North America (MCC350, EU375803.1; MCC339, EU375804.1), Japan (TKS, FJ 464337), China (HB039C, KC57169.1), Sweden, France, Italy (MKL-1, FJ173815) and Korea (KIB, MK561422.1) (Figure 2 and Figure 3).