Table 3.

Application of the Theory of Planned Behaviour to promote pharmacist use of caller tunes to support COVID-19 vaccination in their communities.

Construct	Definition	Application to caller tunes
Attitudes	The extent to which people may either favour or not favour a behaviour of interest	The attitudes of pharmacists and members of the pharmaceutical care team regarding the use of caller tunes to promote COVID-19 vaccination would need to be established. In addition, the attitudes of the general public, particularly those who have already received COVID-19 vaccines, also need to be assessed regarding potential uptake of COVID-19 vaccines caller tunes.
Subjective norms	This describes the potential approval or disapproval of the intended behaviour of interest by others including peers and others who have influence on the priority population	If those who exert influence in the pharmacy profession including leaders or executives of the pharmaceutical societies download caller tunes on COVID-19 vaccines, other pharmacists are likely to follow. For members of the public, this will require a need to identify community champions including opinion leaders to download the caller tunes on COVID-19 vaccines. Using networks of friends may also be valuable.
Perceived behavioral control	This describes people's perception that a given behaviour may be easy or difficult to perform. Such a perception may vary based on given situations.	Pharmacists, other members of the pharmaceutical care team, and members of the public may need to be aware that caller tunes are easy to download. However, cost of downloading the caller tunes, if not waived, could discourage people from downloading the caller tunes on COVID-19 vaccines. This is a reason partnership with mobile telecommunication companies could be effective in implementing this strategy as was the case in Sierra Leone on Ebola.
Intention	This refers to people's likelihood of engaging in a behaviour of interest. The higher the intention, the likelihood of engaging in that behaviour.	Explore the likelihood of pharmacists, other members of the pharmaceutical care team, and members of the public downloading caller tunes on COVID-19 vaccines to encourage individuals hesitant to the vaccines to take them. Pharmacists and others who already have gotten their COVID-19 vaccines and/or have mobile phone caller tunes are more likely to download such COVID-19 vaccine caller tunes.