In this article, vaccination indicators collected from various regions of the country over the past three years (2022–2024) were selected as the object of study. The data were compiled based on open statistical databases of the Ministry of Health and reports from district medical associations. The observed values were grouped by the number of vaccinated individuals, the share of unvaccinated individuals, cases of revaccination, and age categories. Theoretical probabilities for each group were determined based on medical standards and the epidemiological dynamics of previous years, and the degree of conformity was calculated using the χ² (chi-square) formula.