Data integrity is vital in epidemiology for several reasons: 1. Accuracy of Findings: Ensuring data integrity helps in producing accurate epidemiological findings, which are essential for understanding disease patterns and risk factors. 2. Public Trust: High data integrity fosters public trust in epidemiological studies and the public health measures based on these studies. 3. Policy Making: Reliable data is the cornerstone for effective public health policies and interventions aimed at controlling and preventing diseases.