Pradeep K, Samundeswari G, Niranjan R, Dorthy V, Malar I, Velavan A, Konduru RK, Kumar P, Purty AJ. Role of active and passive surveillance in early case detection and prevention of disease spread in COVID-19 pandemic: our experience. Int J Res Med Sci [Internet]. 2022 Feb. 25 [cited 2025 Oct. 14];10(3):704-7. Available from: https://www.msjonline.org/index.php/ijrms/article/view/10528