Risk factors and clinical features associated with death at the COVID-19 isolation ward of Clairwood Hospital/KwaZulu-Natal, South Africa: A retrospective case-control study. - Riziki Ghislain Manimani; Tambwe Willy Muzumbukilwa; Wilbroda Hlolisile Chiya; Furaha Bashengezi Esther; Benjamin Muthambi; Nombulelo Magula (Journal of Public Health and Development, 2026)