Comparative Cohort Epidemiological Study of Collective Immunity against New Coronavirus Infection among Different Groups of Military Personnel
- Authors: Kryukov E.V.1, Trishkin D.V.1, Ivanov A.M.1, Ovchinnikov D.V.1, Kuzin A.A.1, Lancov E.V.1, Artebjakin S.V.1, Zobov A.E.1
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Affiliations:
- S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
- Issue: Vol 76, No 6 (2021)
- Pages: 661-668
- Section: EPIDEMIOLOGY: CURRENT ISSUES
- URL: https://ogarev-online.ru/vramn/article/view/125644
- DOI: https://doi.org/10.15690/vramn1583
- ID: 125644
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Abstract
Background. The need to study the population immunity to the SARS-CoV-2 virus is due to the intensive spread of COVID-19 and the implementation of immunoprophylaxis of this infection. The identification of the features of the formation of immunoresistance in organized military collectives will allow us to predict the development of the epidemic situation, including among comparable population groups.
Aims — the study of population immunity to the SARS-CoV-2 virus in the context of the COVID-19 pandemic against the background of specific immunoprophylaxis in organized military collectives.
Methods. According to epidemiological indications, an epidemiological study of collective immunity to the SARS-CoV-2 virus was conducted against the background of vaccination among cadets of military educational organizations. The study involved 497 people, divided into groups by epidemiological and vaccination history for COVID-19, blood groups and Rh factor. The assessment of the immunity intensity was carried out by the levels of class G immunoglobulins (IgG) to SARS-CoV-2 in the blood serum by the method of solid-phase enzyme immunoassay.
Results. Seroprevalence in the total sample was 92.6%. The highest rates were observed among vaccinated patients: those who were not ill and vaccinated — 99.0 ± 0.7%, those who were ill and vaccinated-100% (mean geometric antibody titers — 1:2234 and 1:4399). Among the ill, unvaccinated individuals, the seroprevalence index was 84.5 ± 3.2% (1:220). Among those who were not ill, not vaccinated — 8.2 ± 3.1% (1:113), which may indicate a hidden course of the epidemic process in the team. A negative immune response was more common (tSt = 2.01; p < 0.05) in individuals A(II)Rh+ blood group. The highest proportion of maximum antibody titers (1:3200–1:6400) was determined in AB(IV) individuals. Rh-blood groups (tSt=2.21; p < 0.05).
Conclusions. For the first time, the formation of combined immunity with the highest concentrations of specific antibodies was revealed in patients who have been ill and vaccinated has been revealed, which allows us to recommend vaccination to those who have suffered from COVID-19. The emergence of post-infectious immunity in organized groups with a latent epidemic process has been established. The relationship between the intensity of immunity with blood groups and the Rh factor was found.
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##article.viewOnOriginalSite##About the authors
Evgenij V. Kryukov
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Author for correspondence.
Email: Evgeniy.md@mail.ru
ORCID iD: 0000-0002-8396-1936
SPIN-code: 3900-3441
Scopus Author ID: 57208311867
MD, PhD, Professor, Corresponding Member of the RAS
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Dmitrij V. Trishkin
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: vmeda-nio@mil.ru
SPIN-code: 1082-0719
MD, PhD
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Andrej M. Ivanov
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: iamvma@mail.ru
ORCID iD: 0000-0002-8899-7524
SPIN-code: 6971-1744
Scopus Author ID: 56034245200
MD, PhD, Professor, Corresponding Member of the RAS
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Dmitrii V. Ovchinnikov
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: 79112998764@yandex.ru
ORCID iD: 0000-0001-8408-5301
SPIN-code: 5437-3457
Scopus Author ID: 36185599800
MD, PhD
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Aleksandr A. Kuzin
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: paster-spb@mail.ru
ORCID iD: 0000-0001-9154-7017
SPIN-code: 6220-1218
MD, PhD, Assistant Professor
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Evgeniy V. Lancov
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: lantsov83@mail.ru
ORCID iD: 0000-0001-7462-173X
SPIN-code: 4384-2924
MD, PhD
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044Sergej V. Artebjakin
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: asvdoc@rambler.ru
ORCID iD: 0000-0001-9392-2220
SPIN-code: 5536-5620
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044
Andrej E. Zobov
S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation
Email: andrey73-2010@mail.ru
ORCID iD: 0000-0001-7791-8993
SPIN-code: 4281-2680
MD, PhD
Russian Federation, 6, Ak. Lebedeva str., Saint Petersburg, 194044References
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