Other risk factors associated with HIV-TB death have previously been reported to include low CD4 count, advanced HIV status, not receiving antiretroviral therapy, not receiving cotrimoxazole prophylaxis, older age, incarceration, low weight, and bed rest; and socio-economic factors such as low knowledge and socio-economic status, poor living conditions, and limited access to health care (49). The gene discussed is CD4; the disease is tuberculosis.