From previous studies, the attributing factors of mortality among TB-HIV infected patients were low CD4 count [18, 22], WHO clinical stage 3 and 4 [23–25], ambulatory and bedridden functional status [26], being male gender [27], age of patients [28], residency [29, 30], missing of cotrimoxazole preventive therapy [30, 31] and not disclosing HIV status [32]. The gene discussed is CD4; the disease is tuberculosis.