Table 1.

Inclusion and exclusion criteria for identified studies.

Inclusion
Papers on the subject of mobile phone-based surveillance systems and its implementation that meets the following criteria were included:
Peer-reviewed studies, project reports and conference reports/proceedings
Written in English
Applied in sub-Sahara Africa
Basic mobile phone-, smart phone-, or tablet-based approaches which were either SMS-based, app-based, telephony-based or based on an Interactive Voice Response (IVR) System
Exclusion
Technical reports and presentation of hypothetical scenarios or mHealth training workshops
Discussion of literature for the purpose of theory building or critique
Summaries of the literature for the purpose of information or commentary
Editorial discussion that discussed the field to argue for research need or a course of action
Studies that were in the field of from the agricultural sector/One Health approaches (approaches which include the human and animal sector)
Studies with a timeframe with less than 7 days
Studies only mentioned trough homepages/web pages that comprised limited project information