COVID-19 surveillance report for Sudan, 2020 to 2021 oleh Ahmad Izzoddeen, Sabir Abosror, Mustafa Magbol, Alaa Khalil, Mazza Abasher, Omer Albadri, Hafsa Abualgasim Osman, Esmail Esmail Mohamed, Abdalla Abdalla Mohamed, Suleiman Gamal Elgurashi, Muntasir M. Osman, Tehani Amin, Elfadil Mohamed, Babiker Magboul, Abdalla Siedahmed, Elfatih M. Malik