Introduction. The causative agent of chickenpox is ubiquitous. In children, especially with a burdened premorbid background, there is a high incidence of severe forms and complications.Aim. To study the course of chickenpox in children in modern conditions.Material and methods. 58 pediatricians (group 1), 42 parents of children aged 0 to 3 years (group 2) and 43 parents of children aged 3 to 6 years (group 3) were surveyed.Results and discussion. In the 1st group, 224 children (73.68%) had a long period of rashes, 57 children (18.75%) had a mild and not long period. At the age of 16, unvaccinated children first fell ill with chickenpox. In 23 patients (7.57%), there were obvious clinical manifestations of chickenpox with a pronounced and prolonged intoxication syndrome. In 67.43%, a positive Mantoux test was recorded with an increase in papule and corolla of hyperemia in dynamics. The development of complications significantly more often (p = 0.0429) was recorded in the group of children with aggravated premorbid background. All pediatricians are positive about vaccination. In the 2nd group, out of 37.5% of parents who are against vaccination, 16.67% believe that the vaccine does not always have a positive effect on the health of the child. The ineffectiveness of vaccines is recognized by 45.83% of respondents. 40.47% of children have not been vaccinated and they do not have vaccination certificates. In the 3rd group, 32.56% of children were ill with chickenpox, of which 79.07% had a mild form of the disease. 67.44% have a positive attitude towards vaccination against chickenpox. The coverage of all vaccines according to the National calendar was 100%.Conclusion. Chickenpox is a serious unsafe infectious disease that requires specific prophylaxis.