Varma, Rahul Rajendra. “Impact of COVID-19, Pre and Post Exposure Prophylaxis of COVID-19”. International Journal of Research in Engineering, Science and Management 4, no. 11 (November 17, 2021): 75–78. Accessed November 21, 2024. https://journal.ijresm.com/index.php/ijresm/article/view/1511.