Children having the lower CD4 count (240–400 CD4 cells/mm3) were more likely to be positve for malaria (20% compared to 10.8%; X2 = 0.71, p = 0.4); for HIV (40% compared to 0%; X2 = 31.08; p<0.001) and for dengue(20% compared to 5.3%; X2 = 2.96, p = 0.085). This evidence concerns the gene CD4 and malaria.