Introduction:
Despite advancements, parasitic diseases remain a significant health challenge. Prevention is crucial among preschool-aged children due to their susceptibility to infections from close interactions and limited hygiene practices. Educating parents is essential to safeguard both them and their children against parasitic infections. This study evaluates the knowledge of parents of preschool children regarding the transmission and prevention of parasitic diseases. It also compares parents’ knowledge based on sociodemographic factors and other determinants.

Material and methods:
Data were collected through anonymous questionnaires completed by parents of children attending kindergartens in Żywiec County, Silesian Voivodeship, Poland. The study, conducted from September 22 to November 30, 2023, included 434 participants. Statistical analysis was performed using the chi-squared NW test and Cramer’s V correlation analysis.

Results:
A majority of respondents (61.8%) demonstrated good knowledge – predominantly parents with higher or secondary education. Statistical analysis showed significant correlations between knowledge level and educational attainment (higher education: 34.4%; secondary education: 18.9%; basic vocational education: 12.9%; primary education: 0%), self-assessment (very good: 41.7%; good: 30.3%; average: 21.1%; poor: 0%), and the importance placed on promoting knowledge (very important: 27.3%; important: 21%; moderately important: 17.2%; marginally important: 0%; not important: 0%).

Conclusions:
Parents of preschool children possess good knowledge about the transmission and prevention of parasitic diseases. However, further parental education is needed, benefiting both children and society.