[Phumeza]

Social media (What’s up) has proved to be one mechanisim that can be used to reach participants in terms of retetion of adherence. You can communicate with the participant that is not answering their call by what’s up and you can send a motivational message to the participants to adhere to their products, or the participants can use it to report any arising issues.

It needs to be managed by one or two staff members who are responsible for retention and adherence.