Pediatric case with vaccine-related poliovirus infection: A case report

Figure 1 Reverse transcriptase-polymerase chain reaction assay amplification of Sabin-like type 1 poliovirus RNA isolated from cerebrospinal fluid samples of this case. 3: Amplified product (approximately 438 bp) on 2% agarose gel electrophoresis; L: 100 bp DNA ladder; N: Negative control; P: Positive control.

Figure 2 Alignment of the partial nucleotide sequences (193 nt to 558 nt) of this case (KX011400). Wild-type poliovirus (V01149.1), vaccine-strain poliovirus (AY184219.1), and vaccine-derived poliovirus (KJ170532.1) by MEGA software version 4.0 (Biodesign Institute, Tempe, AZ, United States) and appearance of a nucleotide difference at position 480 of the 5’ untranslated region. A denotes wild-type poliovirus and G denotes vaccine-strain poliovirus.