Villamor et al. [13] for example examined the risk of adverse perinatal outcomes in relation to maternal or umbilical cord Plasmodium falciparum parasitemia among HIV-infected women from Tanzania and found factors associated with cord parasitemia included maternal parasitemia at the first antenatal visit, and at delivery but not CD4 cell counts, parity, and zinc supplementation. The gene discussed is CD4; the disease is parasitic infectious disease.