In routine public health surveillance, is informed consent usually required, and why?

• A. Yes, always require consent
• B. No, not usually required
• C. Only for certain data types
• D. Yes, for all data

Answer: (B)

In routine public health surveillance, informed consent is not usually required because these activities are authorized by public health law to monitor and protect the health of the population. Data are collected under mandate for timely detection and response to health threats, and they are typically handled under strict privacy protections. Using de-identified or aggregated data whenever possible, limiting access, and implementing governance controls reduces risk to individuals while preserving the public health benefits. There can be exceptions—some jurisdictions require consent or additional approvals for highly sensitive data or for use beyond standard surveillance, or when data collection falls outside mandated public health activities—but the general rule is that consent is not normally required for routine surveillance.