New coronavirus infection COVID-19 and its the consequences of children living in Khabarovsk

In the city of Khabarovsk, along with the wide and all-encompassing distribution of the COVID-19 (new coronavirus infection (NCI), complex clinical and epidemiological studies in the acute and post-infectious period were not conducted in children. The purpose: to characterize some clinical and epidemiological characteristics of NСI in children and study the structure of post-COVID syndrome. Materials and methods. The study consisted of two stages. On the first — a retrospective cohort study was carried out. The second is psychological testing (Spielberg test, San, Moca questionnaire) and a sociological survey of parents using an author's questionnaire. The period: July 2021—August 2022. The sample includes 400 children (0—17 years old): 225 (56.25%) boys and 175 (43.75%) girls, with the largest number of cases in the group of 15—17 years. At the second stage, 43 teenagers (11—17 years old) were investigated with a confirmed NСI and a comparison group of 43 healthy adolescents of the same age. Results. Most often, the basis for examining children on the NCI was family contact — 239 patients (59.75%), and the largest share of sick children is determined in the group of 15—17 years (26%). 63.5% of children made subjective complaints in Post-COVID Condition. Moreover, most often recruits were disturbed by violations by the nervous system (79%). When evaluating personal anxiety, a group of recructions showed statistically significant a higher level of 46.74 ± 0.83, unlike a group of not painful children with a moderate level of 35.54 ± 1.26 (p < 0.001). The study showed a statistically significant decrease in activity among adolescents of NCI by 3.83 ± 0.15 (p = 0.049). The cognitive functions of the ill -fledged NCI of adolescents were statistically significantly lower than normal values (23.86 ± 0.37) and lower than in the comparison group (p < 0.001). Conclusion. The study confirms the influence of NCI on the health of children, emphasizing the need for early detection and correction of neuropsychiatric deviations. 

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