Shakibnia, P. ., Heidari Ahmadi, R., Fallah, F., Ebrahimzadeh, F., Sadeghi Dosari, A. ., Mojtahedi, A. ., Hajipour, N. ., Sharifi Luyeh, M. and Taati Moghadam, M. (2021) “Iran as the Center of challenges in the Middle East for the Outbreak of COVID-19 Delta Variant”, Iranian Red Crescent Medical Journal, 23(11). doi: 10.32592/ircmj.2021.23.11.1394.