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Kochetova EO, Balikin VF, Shamsheva OV, Polesco IV, Uchaykin VF, Konev VA, Mayorova OA, Belyakova VV, Gorev VV, Kononov LB. Longitudinal monitoring of post-vaccination immunity against hepatitis B in children after standard immunization in the first year of life and optimization of vaccination strategy. CHILDREN INFECTIONS 2022. [DOI: 10.22627/2072-8107-2022-21-3-33-38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A clinical and laboratory examination of 62 children aged 10—17 years vaccinated against hepatitis B according to the standard scheme (0—1—6 months) in the first year of life strictly according to the National Calendar of preventive vaccinations in a standard dose (10 micrograms of recombinant HBsAg) with a monocomponent vaccine was carried out.The majority of children (58%) had indicators of seroconversion of HBsAg — anti-HBs-antibodies. This indicates the fact of long-lasting Grund immunity — 10—17 years after timely 3-fold immunization against hepatitis B according to the standard scheme at a standard dose (10 mcg of recombinant HBsAg in the first year of life in the absence of Wooster immunization (revaccination) in subsequent age periods, including children with a burdened premorbid background (87.1% among those observed). Since among those observed were children with invasive medical interventions (50%), the established fact reflects the protective effect of standard Grund immunization even in children at risk — with a positive parenteral history. At the same time, the total assessment of serological and molecular biological results found that after triple immunization against hepatitis B according to the standard scheme in the first year of life, out of 62 children aged 10—17 years, the proportion of seronegative was 42%. Low levels of antibodies (10—100 IU/l) were detected in 43% of cases, high (100—1000 IU/l) — in 15% of cases. No child had an antibody level exceeding >1000 IU/l. These results require the development of new approaches to immunization of children against hepatitis B with mandatory revaccination at an older age.
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Affiliation(s)
- E. O. Kochetova
- Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation
| | - V. F. Balikin
- Ivanovo State Medical Academy of the Ministry of Health of Russia
| | - O. V. Shamsheva
- Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation
| | - I. V. Polesco
- Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation
| | - V. F. Uchaykin
- Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation
| | - V. A. Konev
- Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation
| | | | | | - V. V. Gorev
- Morozovskaya Children's City Clinical Hospital
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