Citing is vital in epidemiology for several reasons. Firstly, it ensures credibility and authenticity. By citing previous studies, researchers demonstrate that their work is built on a foundation of established knowledge. Secondly, it allows for the verification of data and claims. Other researchers can follow the citations to access the original sources and verify the accuracy of the information. Lastly, citing helps in acknowledging the contributions of other researchers, which is essential for maintaining ethical standards in research.