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Related Experiment Video

Updated: Apr 22, 2026

Particle Agglutination Method for Poliovirus Identification
07:06

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Published on: April 20, 2011

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Vaccine-derived polioviruses.

Cara C Burns1, Ousmane M Diop2, Roland W Sutter2

  • 1Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.

The Journal of Infectious Diseases
|October 16, 2014
PubMed
Summary
This summary is machine-generated.

The oral poliovirus vaccine (OPV) aids polio eradication but carries risks of vaccine-associated paralytic poliomyelitis (VAPP) and vaccine-derived polioviruses (VDPVs). Global plans involve replacing trivalent OPV with bivalent OPV to mitigate these risks.

Keywords:
OPVVDPVoral poliovirus vaccinepoliomyelitispoliovirusvaccine-derived poliovirus

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Area of Science:

  • Virology
  • Vaccinology
  • Public Health

Background:

  • Attenuated oral poliovirus vaccine (OPV) offers advantages for polio eradication, including ease of administration and robust immunity.
  • However, OPV's genetic instability can lead to rare vaccine-associated paralytic poliomyelitis (VAPP) and vaccine-derived polioviruses (VDPVs).

Purpose of the Study:

  • To discuss the advantages and disadvantages of OPV in polio eradication efforts.
  • To categorize and explain the emergence of VDPVs.
  • To outline the global strategy for OPV type replacement.

Main Methods:

  • Review of OPV characteristics and associated risks.
  • Classification of VDPVs into circulating (cVDPVs), immunodeficiency-associated (iVDPVs), and ambiguous (aVDPVs).
  • Description of the World Health Organization's plan for OPV type transition.

Main Results:

  • OPV is effective but carries risks of VAPP and VDPV emergence.
  • VDPVs arise from prolonged replication or transmission and are categorized into three types.
  • Most VDPVs are type 2, necessitating a shift away from trivalent OPV.

Conclusions:

  • The genetic instability of OPV presents challenges for polio eradication.
  • Understanding VDPV emergence is crucial for vaccine safety and efficacy.
  • The global transition to bivalent OPV (bOPV) is a key strategy to address VDPV risks, particularly those related to poliovirus type 2.