Enhanced event-based surveillance: Epidemic Intelligence from Open Sources (EIOS) during FIFA World Cup 2022 Qatar oleh Mohamed Sallam, Raihana Jabbar, Lylu K. Mahadoon, Tasneem J. Elshareif, Mariam Darweesh, Hanaa S. Ahmed, Douaa O.A. Mohamed, Aura Corpuz, Mahmoud Sadek, Muzhgan Habibi, Farida Abougazia, Rula Shami, Montaha Mahmoud, Sara Heikal, Sarah Aqel, Sayed Himatt, Maha Al-Shamali, Hamad Al-Romaihi