Shah, Jay, Priscilla Samson, Nabees MS Pradhan, Ashis Shrestha, Shreekrishna Maharjan, Shanta Dangol, and Sarala K.C. “Breakthrough Infection After Covishield COVID-19 Vaccine Among Health Care Workers at Patan Academy of Health Sciences, Nepal: Breakthrough Infection After COVID-19 Vaccine”. Journal of Patan Academy of Health Sciences 8, no. 2 (August 31, 2021): 10–17. Accessed April 25, 2025. https://jpahs.edu.np/index.php/jpahs/article/view/252.