IntroductionL'objectif de ce travail était d'évaluer les différents facteurs associés à la dissociation immunovirologique malgré un traitement antirétroviral hautement actif et efficace.MéthodesIl s'agissait d'une étude de cohorte historique, descriptive et analytique faite à partir de dossiers de patients infectés par le VIH-1; sous traitement antirétroviral depuis au moins 12 mois, suivis dans la cohorte du CTA de 2001 à 2011 et ayant une charge virale indétectable depuis 6 mois.RésultatsDurant cette période d'étude de 10 ans, la prévalence de la DIV était de 19,3%. Le sexe féminin était prédominant avec un sexe ratio de 1,9. La dissociation immunovirologique a été plus fréquemment rencontrée chez les patients de sexe masculin (29,7% vs 14,1%) avec une différence statistiquement significative (p = 0,00006). L'âge médian était de 44 ans ± 10 ans. Un antécédent de tuberculose a été retrouvé dans environ un tiers des cas (31,4%). La dissociation immunovirologique était significativement plus fréquente chez les patients ayant un antécédent de tuberculose (p = 0,00005). La plupart des patients (68%) était au stade SIDA 3 ou 4 de l'OMS. Les patients ayant une dissociation immunovirologique étaient plus souvent aux stades 3 et 4 de l'OMS (p = 0,0001). La dénutrition a été notée dans plus de la moitié des cas (56,2%) et la dissociation immunovirologique prédominait chez les patients dénutris (p=0,005). Le taux moyen de lymphocytes TCD4+ était de 86,7± 83 cellules / mm3. La dissociation immunovirologique était plus fréquente chez les patients ayant un taux de lymphocytes TCD4 bas à l'initiation avec une différence statistiquement significative (p = 0,00000). En analyse multivariée; Seuls l'âge supérieur ou égal à 43 ans, le taux de CD4 initial < 100 c/mm3 et le sexe masculin étaient significativement associés à cette dissociation immunovirologique.ConclusionLes principaux facteurs associés à la dissociation immunovirologique étant évalués, d'autres études portant sur ce groupe mériteraient d'être envisagées afin de connaitre l'impact de cette réponse immunologique partielle sur la survenue d'infections opportunistes ou bien la mise en place d'une trithérapie spécifique uniquement dans le but d'avoir une restauration immunologique optimale.

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Introduction-Objective: COVID-19 is a highly transmissible but often mild viral infection. However, some patients can present severe COVID-19 and subsequently die. The aim of the present study was to assess the risk factors for COVID-19 related death during the first three waves of the disease at the Epidemic Treatment Center (ETC) of Dakar Principal Hospital (DPH). Method: We conducted a descriptive and analytical perspective survival study from April 4, 2020 to September 25, 2021, including adult patients with COVID-19, hospitalized at the ETC of DPH. Log Rank test and multivariate Cox model were performed to identify risk factors for death. Results: We included 556 COVID-19 patients with mean age of 57 ± 17 years and a male-to-female ratio of 1.26. The number of deaths during one month of follow-up was 41, representing a cumulative risk of 7.4%. The log Rank test showed that being from the third wave (p = 0.0056), advanced age (p = 0.00098), presence of at least one comorbidity (p = 0.034), High blood pressure (p = 0.024), d-dimer level ≥ 1000 IU/L (p < 0.001

The 2014 Ebola outbreak in West Africa was the trigger to mobilize efforts in order to promptly obtain safe and effective vaccine. The objectives of this survey conducted during an Ebola vaccine trial were assessing the knowledge, attitudes and practices of participants about Ebola and vaccine and determining the association of key sociodemographic characteristics with knowledge of transmission mode, reservoir, stigma and hand washing. A cross sectional study was designed and a semi-closed questionnaire was used to collect data of the 250 participants. The main identified sources of information were television and radio. The motivations for being part of the study were confidence in doctors (79.6%) and example given by the medical staff (75.6%). Knowledge of transmission mode was low among respondents (22.1%) while that on the reservoir was rather high (73.8%). Stigma was noted in 49.2% of participants. Behavioural change through hand washing was adopted in 74.4% of respondents. Factors associated with knowledge of transmission mode were age group, urban origin, marital status and education level. Fear and geographic origin were associated to stigma and hand washing. To better prevent and control the spread of Ebola virus disease, a focus needs to be placed on modes of transmission and hand washing, and health personnel could play a major role in improving the acceptability of the vaccine.

Background: Among patients treated for tuberculosis, 2% to 5% have a Central Nervous System (CNS) lesion, and its frequency rises to 10% in HIV-infected patients. Neuro-meningeal tuberculosis (NMT) is responsible for death and severe permanent neurological damage. This poor prognosis requires early diagnosis and rapid initiation of specific treatment. Unfortunately, the great clinical polymorphism and the lack of specificity of radiological and biological signs are frequently responsible for a delay in diagnosis and management. Senegal is one of the African countries where tuberculosis has remained a concern until now. And there are no studies carried out on this subject. Objective: The objective of this study was to describe the profile and outcome of Neuro-meningeal tuberculosis (NMT) cases diagnosed at the infectious diseases department (SMIT) of Fann University Hospital in Dakar, (referral service for management of tuberculosis). Methods: We carried out a retrospective, descriptive and analytical study, reviewing medical records of adults diagnosed with NMT at the SMIT of Fann Hospital from January 2015 to December 2020. Results: We collected 55 cases of NMT. The median age was 38 years [range 16 -77 years]. The sex ratio (M/F) was 3.23. HIV patients represented 41.82% of cases. A history of tuberculosis was found in 25.5% of cases. The delay in consultation was greater than one month in 60% of patients. Headaches were the most constant reason for consultation (94.55%).