Shah, Jay Narayan, Priscilla Samson, Nabees Man Singh Pradhan, Shreekrishna Maharjan, Ashis Shrestha, Jenifei Shah, Jesifei Shah, and Sarala KC. “Breakthrough Infection After COVID-19 Vaccination: A Threat for Nepal Due to SARS-CoV-2 Variants Circulating in 2nd Wave Ravaging India”. Journal of Patan Academy of Health Sciences 8, no. 2 (August 31, 2021): 38–48. Accessed January 22, 2022. https://www.nepjol.info/index.php/JPAHS/article/view/37287.