Abstract
            Abstract
            
            Introduction. Pertussis outbreaks among children have been observed in recent years worldwide, despite the successful implementation of vaccination 
programs. In the Kyrgyz Republic, an increase in pertussis incidence has 
been recorded over the past three years. It was therefore decided to study the 
involvement of children in the epidemic process in the country. 
Objective of the study. Study of Pertussis Incidence Among Children Under 
14 Years of Age by Region in the Kyrgyz Republic, 2014–2024
Materials and methods. To calculate incidence rates per 100,000 population, 
data from the national reporting form No. 1 "Report on Infectious and Parasitic Diseases" for the period 2014–2024 were used. Population data for the 
Kyrgyz Republic by region were obtained from the sources of the National 
Statistical Committee. 
Results and discussion. Based on the average annual pertussis incidence 
among children under 14 years of age for the period 2014–2024, the territory 
of the Kyrgyz Republic can be conditionally divided into three zones: epidemiologically unfavorable – Bishkek city and Chuy region (1560∕0000 and 
650∕0000, respectively), medium incidence level – Talas (11,7 0∕0 000) IssykKul (8,00∕0 000), and Naryn (5,50∕0 000) regions, low incidence level – Osh 
city (3,10∕0 000), Jalal-Abad (1,90∕0 000), Batken (0,50∕0 000), and Osh 
(0,30∕0 000) regions. Over the past ten years, three outbreaks were recorded 
in all regions — in 2015, 2018, and 2024 — with incidence rates of 14,80∕0 
000, 29,60∕0 000, and 143,50∕0 000, respectively. The most intense was the 
latest surge, which is likely associated with an increasing proportion of unimmunized children, waning post-vaccination immunity, and other contributing 
factors. 
Conclusion. Epidemic heterogeneity, marked by a wide range of average annual incidence rates, necessitates further evaluation of the surveillance system, risk factors, and other determinants at the regional level. 
The progressive increase in pertussis incidence during the period 2022–2024 
underscores the need to conduct molecular characterization of the pathogen 
to assess the concordance between circulating Bordetella pertussis strains 
and vaccine strains. 
A comparative analysis of age-related susceptibility of children to pertussis 
has been conducted, the results of which are presented in the continuation 
of this publication entitled: “Analysis of Age-related Susceptibility of Children to Pertussis by Region in the Kyrgyz Republic, 2014–2024.”