Multiple SARS-CoV-2 immunizations of an unvaccinated population lead to complex immunity. A T cell reactivity study of blood donors in Antananarivo.

Background: Madagascar has undergone multiple and robust COVID-19 waves. The resulting immune background developed by its poorly vaccinated population has however not been described.

Methods: In this study, serological analysis and specific T cell response descriptions were used to describe the history of exposures of the capital's blood donors to SARS-CoV-2 and its VOCs.

Onychomycosis: experience of the laboratory of parasitology-mycology of CHU-Joseph Ravoahangy Andrianavalona, Antananarivo, Madagascar.

Introduction: onychomycosis is defined as a fungal infection of the nails. They represent the main cause of onychopathy. They constitute a public health problem because of their increased prevalence in the world ranging between 20 to 30%.