Overview of Malaria Infection and Haematological Indices in Africa

Malaria a severe parasitic disease transmitted by Anopheles mosquitoes is caused by various Plasmodium species with P. falciparum and P. vivax posing the greatest threat. While most infections are uncomplicated a small percentage progresses to severe malaria characterized by disruptions in immune cell profiles and increased cytokine levels. Severe P. falciparum malaria is associated with elevated plasma cytokines T cell lymphopenia and impaired T cell function. Treatment aims to restore immune cell balance particularly CD3+ CD4+ and CD8+ cells. Protective immunity involves CD8+ T cells and cytokines like IFN-γ and TNF while CD4+ T cells combat erythrocytic parasites through cytokine secretion and macrophage activation. Regulatory T cells also play a role highlighting the importance of cytokine balance in malaria. Additionally factors like antigen affinity influence T helper lymphocyte differentiation affecting immune responses to the disease.