Department of Pathology;
CHU Andrainjato;
Fianarantsoa;
Madagascar;
Department of Pathology;
Soavinandriana Hospital Center;
Antananarivo;
Madagascar;
Department of Pathology;
CHU Joseph Ravoahangy Andrianavalona;
Antananarivo;
Madagascar;
Department of Pathology;
Medical School of Antananarivo;
Antananarivo;
Madagascar;
Lymphoid Hyperplasia; Lymphoid Follicles; Covid-19; COLON; Rectal Bleeding; CONSTIPATION;