The purpose of this qualitative study was to determine the concerns of mothers referred to health center in south Tehran, Iran about immunizing children aged 0-24 months. Data were collected using individual semi-structured interviews and analyzed using content analysis. The mothers' concerns over immunizing their children fell into 5 main categories: (1) "Factors that cause mothers' concerns," (2) "Factors that influence mothers' concerns," (3) "Information, education, and communication barriers," (4) "Informational/educational needs and sources," and (5) "The necessity of childhood vaccinations." According to study findings, mothers consider immunizing children important and they have enough trust in the health system. A deep understanding of maternal concerns about immunizing their children at 0-24 months allows nurses to reduce mothers' concerns by removing communication barriers and providing appropriate and adequate information.
Keywords: Content analysis; Iran; immunization; maternal concerns.