Background And Aims: Type 1 diabetes (T1D) is a multifactorial autoimmune disease that combines genetics and environmental factors. The aim of this study is to determine the environmental risk factors and to investigate how virals infections are risks factors for type 1 diabetics whom have HLA DR3/DR4 predisposition in our population.
Methods: This study includes 233 subjects, 145 diabetics and 88 controls from regions of the extreme western of Algeria.