HIV infection is still a real public health problem in the world, and Sub-Saharan Africa is still the most affected continent with 24.7 millions of people living with HIV by the end of 2012  and 1.3 millions of death in 2013  . The HIV infection is chronic and provoking cellular immunizing deficit. This ultimate stage of the HIV infection is characterized by the unexpected arrival of opportunistic infections. These last ones are the major causes of HIV-related morbidity and mortality. The antiretrovirus and cotrimoxazole allow a significant reduction of the opportunistic infection incidence and the extension of patients living with HIV life expectancy  . The starting of the antiretroviral treatment in someone living with HIV depends on the WHO stage and the level of immunodeficiency. The goal of this study is to specify the reason for testing of HIV infection and to describe the clinical and immunological characteristics of HIV-infected patients at the antiretroviral treatment initiation at Borgou Departmental University Hospital (CHUD-B) in Parakou.
2. Patients and Study Methods
This was a retrospective and descriptive study on the cohort of the patient living with HIV followed at CHUD-B from the 1st January 2004 to the 3st December 2012. The persons under the age 15 years and the pregnant women have been excluded.
The variables studied were:
1) The age,
2) The sex,
3) Nutritional condition of the patient assessed with the body mass index using Kg/m2,
4) The reason for testing of HIV infection,
5) The clinical stage according to WHO of the patient at the antiretroviral treatment initiation,
6) The opportunistic infection at the antiretroviral treatment initiation,
7) The CD4 cells level of the patients at the antiretroviral treatment initiation.
3.1. Patients Distribution by Age
Out of the total of 988 included patients, 339 are men and 649 are women. The sex-ratio was 0.52.
3.2. Age Distribution
The average age of the patients was 35.49 ± 9.72 years with the extremes 17 and 74 years old.
3.3. Nutritional State of the Patients
The Table 1 shows the patients distribution by the nutritional condition. Out of the 873 patients whose nutritional state has been assessed, 297 (34.02%) were malnourished (Body Mass Index < 18.5 kg/m2).
3.4. Reason for Testing of HIV Infection
The Table 2 shows the patients distribution by the reason for testing. The reason for testing has been inquired in 491 patients. Chronic diarrhea was the most frequent reason for testing, followed by systematic testing during the preoperative assessment and voluntary blood donation.
3.5. WHO Clinical Stage of the Patient at the Antiretroviral Treatment Initiation
The Figure 1 shows the patients distribution by the WHO stage. Out of the total number of 988 patients included in the study, (57.65%) were at stage 3 of WHO and 123 (12.35%) at stage 4.
3.6. Opportunistic Infections at the Antiretroviral Treatment Initiation
The Table 3 shows the patients distribution by opportunistic infections that they presented. The opportunistic infections at the antiretroviral treatment initiation were dominated by oral candidiasis (30.16%), diarrhea (20.45%) and zona (11.03%).
3.7. CD4 Cells Level of the Patients at the Antiretroviral Treatment Initiation
The Figure 2 shows the patients distribution by the level of CD4. Out of 911
Table 1. Nutritional condition of the patients living with HIV at the ARV initiation (n = 873).
Table 2. Reasons for testing of patients living with HIV at the ARV initiation.
*Pregnancy, surgery, blood donation, **Accidental blood exposure, cervical and abdominal tumor, skin tumor.
Figure 1. Patients distribution by the stage (WHO) of HIV infection.
Table 3. Patients distribution by opportunistic infections at the ARV treatment initiation (n = 873).
Figure 2. Patients distribution by the lymphocytes CD4 (cell/mm3) cells count.
patients having a CD4 numeration, 651 (71.46%) had a CD4 count under 200 cells/mm3.
In this study, the HIV-infected persons were young adults with an average age of 35.49 ± 9.72 years old. This remark has been underlined by many authors with an average age that varies between 34.3 ± 8.4 years and 41 ± 10 years   . The most affected age range was 25 to 34 years that represented 41.30% of the study population. Adamou reached similar outcomes. In his study, 40% of patients were between 25 and 35 years old. According to Apetse  , the age range 39 to 39 years was the most represented with 34.73% of the cases.
We noticed a female predominance among the HIV-infected persons. Zannou  and Kra  had also made the same remark. Whereas Shen et al.  reported a male predominance. In view of these results, it is hard to affirm the most predisposed sex to catch HIV infection.
HIV infection, when it’s not treated is responsible of undernutrition. In this study, 34.02% of the patients were undernutrited. These outcomes are superimposable to the ones of Marazzi  who reported 34% as prevalence of undernutrition in HIV infected patients. Koné  reported a body mass index average of 17.2 ± 3.06 kg/m2, indicator of undernutrition.
HIV is responsible of a latent infection that is asymptomatic at the beginning. With the immunodeficiency worsening, appeared some signs that motivate the patients consultation. In this study, the reasons for consultation were dominated by chronic diarrhea in 28.41% of the cases. The main reasons for coming reported by Déguénonvo  are long-term fever (83%), weight-loss (83%), cough (54%), diarrhea (30%), dysphagia (17%) and coma (15%). Koné  reported the following reasons for testing: long-term fever (87.7%), weight-loss (74.90%), chronic diarrhea (67.80%) and oral candidiasis (57.30%). The dominant main signs pointed out by Zannou  during the testing were: weight-loss (88%), fever (80%), cough (71%) and diarrhea (51%).
The different clinical signs presented by the patients allow to classify them according to the 4 stages of WHO. In the absence of CD4 cells count, this classification is enough for an ARV treatment initiation. So the persons classed at stage III or IV of WHO are eligible to ARV treatment. In this study, 7 of 10 patients (70%) are eligible to the treatment with respectively 57.65% at stage III and 42.35% at stage IV. Déguénonvo  reported that 88% of his range patients were at stage IV of WHO. Koné  reported that 64.50% of the patients were at stage III and 15.70% at stage IV. Dicko  reported similar results with 64% at stage IV and 27% at the stage III. In Cameroun the stage IV represented 55.5% of Mahy’s range patients  whereas Zoungrana  in Burkina Faso reported that the patients at the stages III and IV represented 61%.
Immunodeficiency created by the HIV favours the unexpected arrival of many opportunistic infections. The opportunistic infections at the antiretroviral treatment initiation are dominated by oral candidiasis (30.16%), diarrhea (20.45%) and zona (11.03%). Apetse  reported similar results with a predominance of oral candidiasis (49.7%) followed by tuberculosis 11.30% and toxoplasmosis (11.20%). A similar situation exists with the results of Zannou  in which digestive candidiasis (53%) predominated followed by pneumonia (18%), tuberculosis (12%), undetermined pneumonitis (29%), prurigo (20%) zona (16%), cryptosporidiosis (4%), cerebral toxoplasmosis (3%) and Kaposi’s disease (1%). Déguénonvo  , rather reported that tuberculosis predominated (40.9%) followed by oro-esophageal candidiasis (35.3%) and bacterial pneumonitis (18.8%). According to Kra  the reasons of hospitalisation were dominated by tuberculosis (34.2%), cerebral toxoplasmosis (17.9%) and neuromeningeal cryptococcosis (8%).
The HIV-infected patients monitoring is clinic looking for the opportunistic affections but also virological through the measurement of the viral load. The immunological monitoring consists on counting the number of CD4 cells. More than three of four patients (71.46%) had a CD4 count under 200 cells/mm3 showing a major immunodeficiency. Admou  and Diop  have reported similar results with respectively 60.4% and 65% of patients who had a CD4 cells level below or equal to 200/mm3. Shen  and Koné  reported an average CD4 lymphocytes level respectively at 138 cells/mm3 and 144.3 ± 135.8/mm3, indicator of profound immunodeficiency. Whereas Cazein  concluded that 50% of the patients had their CD4 count > 350 cells/mm3 in France. This difference could be explained by the fact that the patients are earlier detected, also by the health policy that allows the ARV initiation with CD4 lymphocytes level below 500 cellules/mm3. In Benin, the CD4 level at 500 cells/mm3 as recommendation for the treatment of HIV-infected patients entered into forces at the beginning of 2015.
HIV infection affects young adults who consult at an advanced stage of immunodeficiency. It is urgent to encourage the HIV voluntary testing and to popularize the new recommendations of ARV initiation at the level of 500 cells/mm3. This will allow the morbidity and mortality decreasing in the patients living with HIV.
 Bekolo, C.E., Nguema, M.B., Ewane, L., Bekoule, P.S. and Kollo, B. (2014) The Lipid Profile of HIV-Infected Patients Receiving Antiretroviral Therapy in a Rural Cameroonian Population. BMC Public Health, 14, 236-244.
 Tanjong, R.E., Teyim, P., Kamga, H.L., Néba, E.S. and Nkuo-Akenji, T. (2016) Sero-Prevalence of Human Immunodeficiency Virus and Hepatitis Viruses and Their Correlation with CD4 T-Cell Lymphocyte Counts in Pregnant Women in the Buea Health District of Cameroon. International Journal of Biological and Chemical Sciences, 10, 219-231.
 Apetse, K., Assogba, K., Kevi, K., Balogou, A.A.K., Pitche, P. and Grunitzky, E. (2011) Infections opportunistes du VIH/sida chez les adultes en milieu hospitalier au Togo. [Opportunistic Infections of the HIV/AIDS in Adults in Hospital Settings in Togo.] Bulletin de la Société de pathologie exotique, 104, 352-354.
 Déguénonvo, F.L., Manga, M.N., Diop, S.A., Badiane, D.N.M., Seydi, M., Ndour, C.T., et al. (2011) Current Profile of HIV-Infected Patients Hospitalized in Dakar (Senegal). Bulletin de la Société de pathologie exotique, 104, 366-370.
 Admou, B., Elharti, E., Oumzil, H., Addebbous, A., Amine, M., Zahlane, K., et al. (2010) Clinical and Immunological Status of a Newly Diagnosed HIV Positive Population, in Marrakech, Morocco. African Health Sciences, 10, 325-331.
 Zannou, D.M., Kindé-Gazard, D., Vigan, J., Adè, G., Sèhonou, J.J. and Atadokpèdé, F. (2004) Profil clinique et immunologique des patients infectés par le VIH dépistés à Cotonou, Bénin. [Clinical and Immunological Profile of HIV-Infected Patients in Cotonou, Benin.] Médecine et maladies infectieuses, 34, 225-228.
 Kra, O., Aba, Y.T. and Yao, K.H. (2013) Profil clinicobiologique, thérapeutique et évolutif des patients infectés par le VIH hospitalisés au service des maladies infectieuses et tropicales d’Abidjan (Côte d’Ivoire). [Clinical, Biological, Therapeutic and Evolving Profile of Patients with HIV Infection Hospitalized at Infectious and Tropical Diseases Unit in Abidjan (Ivory Coast).] Bulletin de la Société de pathologie exotique, 106, 37-42.
 Shen, Y., Lu, H., Wang, Z., Qi, T. and Wang, J. (2013) Analysis of the Immunologic Status of a Newly Diagnosed HIV Positive Population in China. BMC Infectious Diseases, 13, 429-436.
 Marazzi, M.C., Liotta, G., Germano, P., Guidotti, G., Altan, A.D., Ceffa, S., et al. (2008) Excessive Early Mortality in the First Year of Treatment in HIV Type 1-Infected Patients Initiating Antiretroviral Therapy in Resource-Limited Settings. Aids Research and Human Retroviruses, 24, 4-11.
 Koné, M.C., Cissoko, Y., Diallo, M.S., Traoré, B.A. and Mallé, K.K. (2013) Données épidémiologiques, cliniques et thérapeutiques des patients infectés par le VIH sous traitement antirétroviral à l’hôpital de Ségou au Mali (2004-2011). [Epidemiological, Clinical and Therapeutics’ Data of HIV-Infected Patients Placed on ART in the Segou Hospital in Mali (2004-2011).] Bulletin de la Société de pathologie exotique, 106, 176-179.
 Dicko, F., Desmonde, S., Koumakpai, S., Dior-Mbodj, H., Kouéta, F. and Baeta, N. (2014) Reasons for Hospitalization in HIV-Infected Children in West Africa. Journal of the International AIDS Society, 17, 188-193.
 Mahy, S., Duong, M., Huraux, M., Aurenche, C., Ndong, J.G., Birguelet, J., et al. (2011) Mesure de l’efficacité et de l’observance du traitement antirétroviral chez des patients infectés par le VIH au Cameroun. [Measuring the Effectiveness and Adherence of Antiretroviral Therapy in Patients Infected with HIV in Cameroon.] Médecine et maladies infectieuses, 41, 176-180.
 Zoungrana, J., Héma, A., Bado, G., Poda, G.E.A., Kamboulé, B.E., Kaboré, F.N., et al. (2013) Efficacité et tolérance d'une trithérapie antirétrovirale à base de Ténofovir disoproxil Emtricitabine-Efavirenz chez les patients naïfs infectés par le VIH1 à Bobo Dioulasso (Burkina Faso, 2009-2011). [Efficacy and Tolerability of Antiretroviral Therapy Containing Tenofovir Disoproxil Fumarate-Emtricitabine-Efavirenz in Treatment-Naive Patients Infected with HIV-1 in Bobo Dioulasso (Burkina Faso, 2009-2011).] Bulletin de la Société de pathologie exotique, 106, 239-243.
 Diop, S.A., Déguénonvo, F., Seydi, L.M., Dieng, A.B., Basse, C.D., Manga, N.M., et al. (2013) Efficacité et tolérance de l'association ténofovir-lamivudine-éfavirenz chez lespatients VIH1 à la clinique des maladies infectieuses au CNHU Fann de Dakar. [Efficacy and Safety of Tenofovir-Lamivudine-Efavirenz combinaison HIV-1 Patients at the Infectious Diseases Clinic at the CNHU Fann of Dakar.] Bulletin de la Société de pathologie exotique, 11, 22-26.
 Cazein, F., Pillonel, J., Bousquet, V., Imounga, L., Levus, L.E., Strat, Y., et al. (2009) Caractéristiques des personnes diagnostiquées avec une infection à VIH ou un sida, France, 2008. [Characteristics of Persons Diagnosed with HIV Infection or AIDS, France, 2008.] Bull Epidemiol Hebd, 2, 52-59.