In the described workplace mosquito-net trial during an epidemic, is the proposed methodology ethically acceptable?

• A. Yes
• B. Not enough information
• C. No
• D. It depends

Answer: (C)

The key idea being tested is ensuring that participation in research is voluntary and free from undue influence, especially when the setting involves a power dynamic like a workplace during a health emergency. In a workplace context, employees may feel pressured to join a study to please management, secure benefits, or avoid negative consequences, even if they are told participation is voluntary. TCPS 2 emphasizes respect for persons, which means consent must be truly voluntary, informed, and obtainable without coercion or subtle pressure.

In this described mosquito-net trial during an epidemic, these coercive dynamics are particularly problematic. The employer–employee relationship can create an implicit threat or expectation that affects a worker’s decision to participate, compromising autonomy. If the study also involves randomization to receive or not receive a protective intervention, there is a risk of disadvantaging participants in a vulnerable moment during an epidemic, unless there is genuine equipoise, robust risk–benefit justification, and independent safeguards. For an ethical approach, recruitment should be independent of the employer, participation should be opt-in with clear, comprehensible information, there should be no employment-related penalties for non-participation, and data privacy and participant welfare must be protected. Without these safeguards, the proposed method aligns poorly with ethical standards.

Therefore, the answer is that, in its described form, it is not ethically acceptable. If the approach were redesigned to ensure voluntary, independent consent and strong protections against coercion, with appropriate ethics review and safeguards, the assessment could change.