Zhang, Xinyuan. “The Impact of Re-Infection With COVID-19 on Human Immunity and Coping Strategies in The Post-Pandemic Era”. Transactions on Materials, Biotechnology and Life Sciences 7 (December 24, 2024): 816–823. Accessed June 16, 2026. https://wepub.org/index.php/TMBLS/article/view/5036.