D. C. Douek, M. Roederer and R. A. Koup, “Emerging Concepts in the Immunopathogenesis of AIDS,” Annual Review of Medicine, Vol. 60, 2009, pp. 471-484.
 R. A. Weiss, “How Does HIV Cause AIDS?” Science, Vol. 260, No. 5112, 1993, pp. 1273-1237.
 P. Andrew, T. Gareth, J. Prakash, B. Sandra and G. Philip, “International Perspectives, Progress and Future Challenges of Paediatric HIV Infection,” Lancet, Vol. 370, No. 9581, 2007, pp. 68-80.
 I. J. Emodi and G. O. Okafor, “Clinical Manifestations of HIV Infection in Children at Enugu, Nigeria,” Journal of Tropical Paediatrics, Vol. 44, No. 2, 1998, pp. 73-76.
 G. N. Odaibo, D. O. Olaleye, L. Heyndrickx, K. Vereecken, K. Houwer and W. Jassens, “Mother-to-Child Transmission of Different HIV-1 Subtype among ARV Naïve Infected Pregnant Women in Nigeria,” Journal of Tropical Paediatrics, Vol. 51, No. 3, 2005, pp. 145-147.
 S. I. Adeleke and Y. M Muktar, “Interactions of Childhood Malnutrition and Human Immunodeficiency virus Infection in Sub Saharan Africa: Emphasis on Epidemiological, Immunological, Clinical and Preventive Modalities,” Nigerian Journal of Clinical Sciences, Vol. 3, 2006, pp. 1-7.
 S. I. Adeleke and Y. M. Muktar, “A Comparative Study of HIV Seroprevalence among Malnourished Children and Controls in Kano,” Nigerian Journal of Pharmaceutical Medical Science, Vol. 1, 2004, pp. 23-26.
 B. O. Motayo, U. Usen, B. O. Folarin, P. O. Okerentugba H. C. Innocent-Adiele and I. O. Okonko, “Prevalence and Seasonal Variations of HIV 1 and 2 Infection among Children in Abeokuta, South West Nigeria,” Journal of Microbiology Research, Vol. 3, No. 3, 2013, pp. 107-110.
 S. D. Yeung, S. Wilkinson, C. F. Escott and F. Gilks, “Paediatric HIV Infection in a Rural South Africa District Hospital,” Journal of Tropical Paediatrics, Vol. 46, No. 2, 2000, pp.107-110.
 O. O. Babatunde, E. O. Regina, J. B. Biobele and I. O. Kikelomo, “Prevalence and Clinical Pattern of Paediatric HIV Infection at the University College Hospital, Ibadan, Nigeria: A Prospective Cross-Sectional Study,” Italian Journal of Pediatrics, Vol. 37, 2011, pp. 1824-7288.
 N. Emeka, M. Francis, E. Joseph and A. Paul, “Prevalence of Hepatitis B Co-Infection amongst HIV Infected Children Attending a Care and Treatment Centre in Owerri, South-Eastern Nigeria,” The Pan African Medical Journal, Vol. 14, 2013, pp. 89-96.
 J. U. Ojukwu and C. N. Ogbu, “HIV Infection in Hospitalized Children with Endemic Diseases in Abakeleke, Nigeria: The Role of Clinically Directed Screening,” Acquired Immuno Deficiency Syndrome Care, Vol. 19, No. 3, 2007, pp. 330-336.
 E. A. Daniel and O. E. Nelson, “Trend of HIV Seropositivity among Children in a Tertiary Institution in the Niger-Delta Region of Nigeria,” Africa Journal of Health Sciences, Vol. 13, No. 1-2, 2006, pp. 80-85.