Table 1.

Reasons for vaccine hesitation fell under several Theoretical Domains Framework (TDF) constructs (left column). The rightmost column provides examples of intervention suggestions for responding to vaccine hesitancy in relation to the TDF construct.

TDF constructs	Content analysis theme	Example suggestions
Knowledge	Lack of knowledge	Introduce campaigns that educate the public about using clear language in media that are commonly used to digest content (eg, social media).
Social influence	Authority	Have nonpolitical, respected older adult Canadian celebrities take the vaccine as an example. Such celebrities could be retired athletes or musicians.
Environmental context and resources	Political skepticism	Emphasize that vaccines are rooted in science and not politics. This is a difficult quality to understand. In action, this could be done by having messages come from trusted physicians instead of politicians.
Emotion and beliefs about consequences	Safety	Highlight examples of instances when the vaccine has worked. Reiterate the safety of the vaccine. Reiterate the fact that the steps in the scientific development of the vaccine were not missed.