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Vaccine-associated paralytic poliomyelitis in immunodeficient children, Iran, 1995-2008

Shohreh Shahmahmoodi1, Setareh Mamishi, Asghar Aghamohammadi

  • 1Tehran University of Medical Sciences, 14194 Tehran, Iran.

Emerging Infectious Diseases
|July 1, 2010
PubMed

Insights

Vaccine-associated paralytic poliomyelitis (VAPP) is a risk for immunodeficient infants. Switching to inactivated polio vaccine and screening newborns for immunodeficiencies can lower VAPP risk.

Area of Science:

  • Immunology
  • Virology
  • Public Health

Background:

  • Poliomyelitis remains a global health concern, with vaccine-derived polioviruses posing a risk.
  • Immunodeficient infants are particularly vulnerable to vaccine-associated paralytic poliomyelitis (VAPP).

Observation:

  • A review of Iranian cases from 1995-2008 identified VAPP occurrences linked to immunodeficiency-associated vaccine-derived polioviruses.
  • The study focused on the prevalence and causative agents of VAPP in a specific pediatric population.

Findings:

  • The study documented cases of VAPP in immunodeficient infants in Iran.
  • Immunodeficiency-associated vaccine-derived polioviruses were identified as the cause of these VAPP cases.

Implications:

  • Transitioning to an inactivated polio vaccine schedule is recommended to mitigate VAPP risk.
  • Implementing neonatal screening for immunodeficiencies could further reduce the incidence of VAPP.

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