Positive effect of meningococcal C vaccination on serogroup replacement in Neisseria meningitidis Emilio Pérez-Trallero, Diego Vicente, Mila Montes, Ramón Cisterna The Lancet Volume 360, Issue 9337, (September 2002) DOI: 10.1016/S0140-6736(02)11061-0 Copyright © 2002 Elsevier Ltd Terms and Conditions
Figure Pulsed-field gel electrophoresis patterns (after NheI restriction) of 10 N meningitidis isolates Lanes 1–4: four non-related isolates serogroups C, B, W135, and B, respectively; lanes 5 and 6: two N meningitidis isolates; lanes 7–10: four N meningitidis 2a:P1·5 isolates; lane 11: DNA size (lambda-ladder, Biorad). The Lancet 2002 360, DOI: (10.1016/S0140-6736(02)11061-0) Copyright © 2002 Elsevier Ltd Terms and Conditions