ISSN 2226-6976 (Print)
ISSN 2414-9640 (Online)

Dynamics of incidence of non-invasive and invasive forms of pneumococcal infection in Russia

Gaponova I.I., Churilova N.S., Koroleva I.S., Akimkin V.G.

Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russia
Objective. Analysis of the incidence of non-invasive and invasive forms of pneumococcal infection in Russia from 2012 to 2024.
Materials and methods. Descriptive statistics were used. Data from state statistical records from 2012 to 2024 and data from the Russian Reference Center for Bacterial Meningitis Monitoring for 2023–2024 were analyzed.
Results. The long-term average annual incidence rate of community-acquired pneumonia (CAP) in Russia was 457.6 per 100,000 population. The highest rate was recorded in children aged 1–2 years (1,503 per 100,000). By 2024, an upward trend in CAP incidence was observed. The highest long-term average annual rates in children aged 1–2 years were recorded in the Far Eastern Federal District. In the etiological structure of CAP, cases without an established etiology predominate. Among cases of CAP with an established etiology, bacterial ones predominate (26.3%), of which pneumococcal ones account for 5.9%. The long-term average annual incidence rate of pneumococcal pneumonia is 7.1 per 100,000. The incidence increased by 2023, with the highest rates noted in the Northwestern, Volga, and Siberian Federal Districts. The highest incidence of pneumococcal meningitis was observed in children aged 0–4 years.
Conclusion. The CAP incidence, which had declined after the COVID-19 pandemic, began to increase by 2024. However, the incidence of pneumococcal pneumonia has increased. The incidence of pneumococcal meningitis is also trending upward. The etiologic interpretation of cases of pneumococcal pneumonia remains low.

Keywords

pneumonia
incidence
Streptococcus pneumoniae
bacterial meningitis

References

1. World Health Organization. Pneumococcus: Vaccine Preventable Diseases Surveillance Standards. https://www.who.int/publications/m/item/vaccine-preventable-diseases-surveillance-standards-pneumococcus

2. Yu J., Ravenscroft N., Davey P., Liyanage R., Lorenz O., Kuttel M.M. et al. New pneumococcal serotype 20C is a WciG O-acetyltransferase deficient variant of canonical serotype 20B. Microbiol. Spectr. 2024; 13(1): e02443-24. DOI: 10.1128/spectrum.02443-24

3. Миронов К.О., Гапонова И.И., Корчагин В.И., Михайлова Ю.В., Шеленков А.А., Чагарян А.Н. и др. Определение серотипов Streptococcus pneumoniae, вызывающих инвазивные и неинвазивные формы инфекций, с использованием высокопроизводительного секвенирования. Клиническая микробиология и антимикробная химиотерапия 2024; 26(4): 396–400. [Mironov K.O., Gaponova I.I., Korchagin V.I., Mikhailova Yu.V., Shelenkov A.A., Chagaryan A.N. et al. Identification of Streptococcus pneumoniae serotypes causing invasive and non-invasive infections using high-throughput sequencing. Clinical Microbiology and Antimicrobial Chemotherapy 2024; 26(4): 396–400. (In Russ.)]. DOI: 10.36488/cmac.2024.4.396-400

4. Ranjbar R., Afshar D. Isothermal and Sensitive Identification of Streptococcus pneumoniae Using Loop Mediated Isothermal Amplification Assay. Arch. Pediatr. Infect. Dis. 2017; 6(1): e61604. DOI: 10.5812/pedinfect.61604

5. Centers for Disease Control and Prevention. Clinical Overview of Pneumococcal Disease. https://www.cdc.gov/pneumococcal/hcp/clinical-overview/index.html

6. Centers for Disease Control and Prevention. Epidemiology and Prevention of Vaccine-Preventable Diseases. Chapter 17: Pneumococcal Disease. https://www.cdc.gov/pinkbook/hcp/table-of-contents/chapter-17-pneumococcal-disease.html

7. Scelfo C., Menzella F., Fontana M., Ghidoni G., Galeone C., Facciolongo N.C. Pneumonia and Invasive Pneumococcal Diseases: The Role of Pneumococcal Conjugate Vaccine in the Era of Multi-Drug Resistance. Vaccines 2021; 9(5): 420. DOI: 10.3390/vaccines9050420

8. Белошицкий Г.В., Королева И.С., Королева М.А. Основные эпидемиологические аспекты пневмококкового менингита. Эпидемиол. инфекц. болезни. Актуал. вопр. 2021; 11(1): 62–70. [Beloshiczky G.V., Koroleva I.S., Koroleva M.A. Main epidemiological aspects of pneumococcal meningitis. Epidemiоlоgy and infectious diseases. Сurrent items 2021; 11(1): 62–70. (In Russ.)]. DOI: 10.18565/epidem.2021.11.1.62-70

9. European Centre for Disease Prevention and Control. Invasive pneumococcal disease - Annual Epidemiological Report for 2022. https://www.ecdc.europa.eu/en/publications-data/invasive-pneumococcal-disease-annual-epidemiological-report-2022

10. Centers for Disease Control and Prevention. 2023. Active Bacterial Core Surveillance Report, Emerging Infections Program Network, Streptococcus pneumoniae, 2023. www.cdc.gov/abcs/downloads/SPN_Surveillance_ Report_2023.pdf

11. Che J., Peng B., Xu J., Shao Z. Prevalence of Streptococcus pneumoniae serotypes causing pneumococcal diseases in the Chinese Mainland: A systematic review and meta-analysis. Hum. Vaccin. Immunother. 2024; 20(1): 2416763. DOI: 10.1080/21645515.2024.2416763

12. Self W.H., Johnson K.D., Resser J.J., Whitney C.G., Baughman A., Kio M. et al. Prevalence, Clinical Severity, and Serotype Distribution of Pneumococcal Pneumonia Among Adults Hospitalized With Community-Acquired Pneumonia in Tennessee and Georgia, 2018–2022. Clin. Infect. Dis. 2024; 79(4): 838–847. DOI: 10.1093/cid/ciae316

13. Mrabt F., Guedes S. Systematic review on serotypes distribution of pneumococcal pneumonia in adults and the elderly. BMC Public Health 2025; 25(1): 1194. DOI: 10.1186/s12889-025-22164-x

14. Chen C., Ang G., Akksilp K., Koh J., Scott J.A.G., Clark A. et al. Re-evaluating the impact and cost-effectiveness of pneumococcal conjugate vaccine introduction in 112 low-income and middle-income countries in children younger than 5 years: a modelling study. Lancet Glob. Health 2024; 12(9): e1485–e1497. DOI: 10.1016/S2214-109X(24)00232-8

15. Брико Н.И., Коршунов В.А., Ломоносов К.С. Пневмококковая инфекция в Российской Федерации: состояние проблемы. Вестник РАМН 2021; 76(1): 28–42. [Briko N.I., Korshunov V.A., Lomonosov K.S. Pneumococcal infection in the Russian Federation: state of the problem. Bulletin of the Russian Academy of Medical Sciences 2021; 76(1): 28–42. (In Russ.)]. DOI: 10.15690/vramn1404

About the Authors

Irina I. Gaponova, Researcher, Laboratory of Molecular Methods for Studying of Genetic Polymorphisms, Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russia; gaponova@cmd.su; https://orcid.org/0000-0003-4481-2249
Nadezda S. Churilova, Researcher, Laboratory of Epidemiology of Meningococcal Infection and Purulent Bacterial Meningitis, Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russia; churilova@cmd.su; https://orcid.org/0000-0001-5344-5829
Professor Irina S. Koroleva, MD, Advisor to the Director for Analytical Work in the Field of Purulent Bacterial Meningitis,, Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russia; irakor@cmd.su; https://orcid.org/0000-0003-0578-146X
Professor Vasily G. Akimkin, Academician of the Russian Academy of Science, MD, Director, Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russia; akimkin@pcr.ms; https://orcid.org/0000-0003-4228-9044

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