Abstract

Introduction. The effectiveness of TB vaccination is low in more than half of children with tuberculosis, which is confirmed by the small size of the post-vaccination scar or its absence. Having a residual virulence, the BCG strain can cause the development of post-vaccination complications. Objective – to conduct a comparative analysis of the frequency and structure of complications of TB vaccination with BCG and BCG-M in children. Material and methods. The analysis of the frequency and structure of complications was carried out in 284 children in BCG vaccination, in 273 children in BCG-M vaccine. Results. The use of BCG-M vaccine reduced the frequency and proportion of complications, and improved the structure of post-vaccination complications. The development of complications is associated with altered immunological reactivity of the child, which is manifested by a decrease in the activation potential of T-lymphocytes and functional insufficiency of humoral immune cells. Conclusions. During the period of TB vaccination, a thorough clinical and laboratory analysis of children with perinatal pathology is necessary to exclude immune insufficiency and reduce the risk of complications.

Highlights

  • The effectiveness of TB vaccination is low in more than half of children with tuberculosis, which is confirmed by the small size of the post-vaccination scar or its absence

  • Проведен сравнительный анализ частоты и структуры осложнений на противотуберкулёзную вакцинацию с использованием вакцины БЦЖ у 284 детей за 10-летний период 20002009 гг. и у 273 детей, вакцинированных вакциной БЦЖ-М, за период 2010-2019 гг

  • При этом БЦЖ-лимфадениты до 94% выявлялись в активной стадии развития и только 6% – в стадии обызвествления, что достоверно меньше, чем в период использования вакцины

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Summary

Introduction

The effectiveness of TB vaccination is low in more than half of children with tuberculosis, which is confirmed by the small size of the post-vaccination scar or its absence. Провести сравнительный анализ частоты и структуры осложнений на противотуберкулёзную вакцинацию вакциной БЦЖ и БЦЖ-М у детей. Анализ частоты и структуры осложнений проводился у 284 детей на вакцинацию вакциной БЦЖ, у 273 детей на вакцину БЦЖ-М. С. Сравнительный анализ частоты и структуры осложнений на противотуберкулезную вакцинацию вакциной БЦЖ и БЦЖ-М / А.

Results
Conclusion
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