Despite its benefits, active surveillance faces several challenges:
1. Resource Intensive: Active surveillance requires significant resources, including trained personnel, financial investment, and time. 2. Logistical Issues: Reaching remote or underserved areas can be difficult, limiting the effectiveness of surveillance efforts. 3. Data Quality: Ensuring the accuracy and completeness of data can be challenging, particularly in resource-limited settings. 4. Privacy Concerns: Collecting detailed personal and medical information can raise ethical and privacy concerns.
