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The varicella vaccine. Clinical trials in immunocompromised individuals
A A Gershon1, P LaRussa, S Steinberg
1Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York, USA.
Insights
Live attenuated varicella vaccine is safe and effective for immunocompromised children, including those with leukemia in remission. Studies in these high-risk groups enhance understanding of varicella vaccine
Area of Science:
- Immunology
- Pediatrics
- Vaccinology
Background:
- Immunocompromised children, especially those with leukemia in remission, are at high risk for severe varicella (chickenpox).
- Understanding the safety and efficacy of live attenuated varicella vaccine in this population is crucial for public health.
Purpose of the Study:
- To review the safety, immunogenicity, and efficacy of live attenuated varicella vaccine in immunocompromised children.
- To discuss the unique insights gained from studying varicella vaccine in high-risk pediatric populations.
Main Methods:
- Literature review of studies on live attenuated varicella vaccine in immunocompromised children.
- Analysis of data on vaccine safety, immune response, and clinical outcomes.
Main Results:
- The varicella vaccine demonstrates acceptable safety, immunogenicity, and efficacy in immunocompromised children, including those with leukemia in remission.
- Studies in this cohort provide valuable information on vaccine virus spread, zoster incidence, and immune correlates.
Conclusions:
- Live attenuated varicella vaccine is an important tool for protecting high-risk children against severe varicella infections.
- Research in immunocompromised populations significantly advances our understanding of varicella vaccine dynamics and immune responses.
Abstract:
A review of the use of live attenuated varicella vaccine in immunocompromised children, particularly those with underlying leukemia in remission, is presented. Data concerning safety, immunogenicity, and efficacy of this vaccine in high-risk children are reviewed. The unique contributions toward our understanding of varicella vaccine, including spread of vaccine-type virus, incidence of zoster, and immune correlates provided by studies of immunocompromised patients are discussed. The importance of protecting high-risk children against severe varicella by the use of varicella vaccine is apparent.