Table 1.

Operationalization of intervention fidelity.

Levels and criteria			Objective		Strategies to ensure fidelity
Theoretical
	Study design control	Ensure that the intervention is consistent with the theoretical propositions of the Health Promoting Behavior.		The content of the study will be validated by experts to determine consistency between the active ingredients and the proposed theoretical component.
Operational
	Interventionist training	Ensure that the intervention is delivered in accordance with the protocol.		A course on dengue will be held and nurse training will be provided.
	Delivery of the intervention	To reduce variability in the application of the intervention.		The intervention will be delivered by a trained nurse and performance will be verified. Development of the intervention protocol manual, with standardized educational material.
	Treatment exposure	Ensure that all adults receive the intervention on equal terms.		Provide the intervention to all participants as defined in the intervention protocol manual: frequency, dosage, duration, delivery method, and sequence.
	Treatment reception	Verify the appropriation and use of the active components of the intervention: educational, behavioral, and attitudinal support.		At the end of each session, there will be a space for feedback, review of key points, and commitments.
	Follow-up of treatment compliance	Verify the implementation of health promoting behavior.		Face-to-face and telephone sessions will be held to provide feedback on the proposed objectives to achieve health-promoting behavior.