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. 2020 Jul 13;13(9):1247–1250. doi: 10.1016/j.jiph.2020.06.034

Fig. 3.

Fig. 3

Mass gatherings in Islam. (A). Pilgrims at the Great Mosque of Mecca, in Saudi Arabia. The ritual of Tawaf walking seven times counterclockwise around the Kaaba, a building at the center of the Great Mosque of Mecca, is performed by all the Umrah and Hajj pilgrims. (B). the city Qom in Iran is considered holy by Shia Muslims. It attracts around twenty million pilgrims every year.