OMER, E. O.; BAKRI, M.; IDRIS , A.-N. K. B.; ABDALLA, N. O. S.; ELTAYEB , R. A.; ELMAHI, E. I.; ZAROOG, M. S.; HASSAN, M. E.; NABAG, M. The effectiveness of the Covid 19 vaccine in reducing infection in Dongola city, Northern State, Sudan. South Eastern European Journal of Public Health, [S. l.], p. 1868–1874, 2024. DOI: 10.70135/seejph.vi.2707. Disponível em: http://seejph.com/index.php/seejph/article/view/2707. Acesso em: 14 sep. 2025.