Effect of mobile phone text message and call reminders in the completeness of pentavalent vaccines in Kano state, Nigeria.

Purpose: This study assessed the effect of mobile phone text message and call reminders in the completeness of the pentavalent vaccine administered against diphtheria, pertussis, tetanus, hepatitis B, and Haemophilus influenza.

Design And Methods: The population for this quasi-experimental study were recent mothers of children not more than three weeks old selected from six local government areas of Kano State, Northern Nigeria. Three local government areas were each allocated to the intervention (reminder) and control groups of the study.