Piryani RM, Piryani S, Mukhia R. COVID-19 and Herd Immunity: A Dilemma to Understand. J. KIST Med. Col [Internet]. 2020 Sep. 14 [cited 2025 Apr. 3];2(4):I-II. Available from: https://jkistmc.org.np/jkistmc/index.php/JKISTMC/article/view/84