A new RT-PCR assay for the identification of the predominant recombination types in 2C and 3D genomic regions of vaccine-derived poliovirus strains

Molecular and Cellular Probes
V PliakaP Markoulatos

Abstract

In the post-eradication era of wild polioviruses, the only remaining sources of poliovirus infection worldwide would be the vaccine-derived polioviruses (VDPVs). As the preponderance of countries certified to be polio-free has switched from OPV (oral poliovirus vaccine) to IPV (inactivated poliovirus vaccine), importation of recombinant evolved derivatives of vaccinal strains would have serious implication for public health. To test the robustness of the proposed RT-PCR screening analysis, eleven recombinant vaccine-derived polioviruses that were characterized previously by sequencing by our group, in addition to three recently identified recombinant environmental isolates were assayed. Although the most definitive characterization of VDPVs is by genomic sequencing, in this study we describe a new, inexpensive and broadly applicable RT-PCR assay for the identification of the predominant recombination types S3/Sx in 2C and S2/Sx in 3D genomic regions respectively of VDPVs, that can be readily implemented in laboratories lacking sequencing facilities as a first approach for the early detection of vaccine-derived poliovirus (VDPVs).

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Citations

Oct 27, 2010·Vaccine·Vaia PliakaPanayotis Markoulatos
May 28, 2013·International Journal of Biological Macromolecules·Nayara LopesCarlos Nozawa
Dec 30, 2014·Virus Genes·Zaharoula KyriakopoulouPanayotis Markoulatos
Mar 8, 2011·Clinical Microbiology and Infection : the Official Publication of the European Society of Clinical Microbiology and Infectious Diseases·V PliakaP Markoulatos

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