Shah J, Samson P, Pradhan NM, Maharjan S, Shrestha A, Shah J, et al. Breakthrough infection after COVID-19 vaccination: A threat for Nepal due to SARS-CoV-2 variants circulating in 2nd wave ravaging India. JPAHS [Internet]. 2021 Sep. 28 [cited 2024 Oct. 25];8(2):38-4. Available from: https://jpahs.edu.np/index.php/jpahs/article/view/265