Introduction
infectious diseases
INFECTIOUS DISEASES
Globally, children immunization is a life saving intervention, especially in fragile contexts where there is an increased risk for acquiring infectious diseases (UNICEF, Over three million children have fled out of Syria, since 2011, to the Middle East and Europe (EuroStat, There is a growing evidence on the effectiveness of smartphone apps of reminders interventions, e.g. automated telephone reminders, on improving vaccine uptake and series completion (Atkinson et al., We have implemented an integrated app intervention in collaboration with the Jordan Ministry of Health, Jordan University of Science and Technology (JUST), United Nations Children’s Fund (UNICEF), United Nations High Commissioner for Refugees (UNHCR), and the local health service delivery partners in the Zaatari camp. This study aimed to assess the impact of the automated reminder for the vaccination visits delivered via an app, called the Children Immunization App (CIMA) (Khader, 