Primary Immunodeficiencies Diseases (Pid) In Senegalese Children: A Cross Sectional Observational Study

Objective: Primary immunodeficiencies are rarely related in sub-Saharan Africa. The aim of this study was to identify their different clinical patterns, to describe their biological phenotypes and to analyse treatment. A cross-sectional observational study over a period of 4 years and 2 months in 5 Senegalese paediatric departments was conducted. Children were recruited according to the recommendations of African society for immunodeficiencies (ASID) or the 10 warning signs for PID's diagnosis. Biological explorations were performed in these patients. Results: 30 cases of PID were recorded. The sex ratio was 1:1; with a median age at diagnosis of 24 months. The most common clinical patterns were respiratory infections (18 patients) including tuberculosis pneumonia in almost one-third of cases (22%), followed by digestive and then cutaneous manifestations. This signs occurs in a specific context; as inbreeding (36, 7% of cases), death in sibling (30% of cases), or previous hospitalizations (66, 7%). Biological exploration made it possible to obtain immunological confirmation in 10 children, including one genetically confirmed. The most common category of PID was syndromic PID. Treatment was based mainly on antibiotic prophylaxis. PID are a reality in Senegal, but are certainly underestimated. Continue recruitment will enable advocacy for access to certain treatment.