In the malaria and typhoid fever co-morbidity group, a positive correlation was recoded between IL-2/TNFα (r = 0.515, p = 0.03), IL-2/IL-6 (r = 0.536, p = 0.02) and IL-6/TNF-α (r = 0.664, p = 0.007). This evidence concerns the gene IL2 and typhoid fever.