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Immunization for persons infected with human immunodeficiency virus.

Chitsanu Pancharoen1, Jintanat Ananworanich, Usa Thisyakorn

  • 1Infectious Disease Unit, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Thailand. chitsanu.p@chula.ac.th

Current HIV Research
|November 17, 2004
PubMed
Summary

Immunization protects HIV-infected individuals from vaccine-preventable diseases. However, impaired immune responses and potential viral load increases necessitate careful vaccine selection and timing, preferably before immune suppression.

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Area of Science:

  • Immunology
  • Infectious Diseases
  • Vaccinology

Background:

  • Immunization is crucial for preventing vaccine-preventable diseases in individuals with Human Immunodeficiency Virus (HIV).
  • Antibody response to vaccines is often diminished in HIV-infected patients, correlating with CD4+ T cell counts.
  • Some vaccines may exacerbate HIV replication and transiently elevate viral load.

Purpose of the Study:

  • To review immunization strategies for HIV-infected children and adults.
  • To highlight safety considerations for inactivated and live vaccines in this population.
  • To emphasize the need for tailored vaccine recommendations and further clinical trials.

Main Methods:

  • Review of existing literature and guidelines on immunization in HIV-infected individuals.

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  • Analysis of vaccine safety and efficacy data, considering immune status.
  • Discussion of factors influencing country-specific recommendations.

    • Main Results:

    • Inactivated vaccines are generally safe and recommended for HIV-infected patients at standard ages.
    • Live vaccines require caution, especially in severely immunocompromised individuals.
    • Vaccination timing, ideally before significant immune suppression, is theoretically advantageous.

    Conclusions:

    • Strategic immunization is vital for HIV-infected individuals, balancing protection with safety.
    • Careful consideration of vaccine type, patient immune status, and local epidemiology is essential.
    • Further vaccine trials in HIV-infected populations are needed to optimize recommendations.