<p>New-Onset of Crohn’s Disease Is Associated with Antistreptolysin O Positive Titers</p>

Different infectious agents have been presumed to be candidates acting as an etiologic factor or trigger of Crohn's disease (CD). Group A Streptococcus (GAS) is a common human infection agent that can also trigger post-infectious immune-mediated conditions. The current study aimed to examine whether the immunogenic activity induced by GAS may trigger new-onset of CD.Data for antistreptolysin O (ASO) level, throat culture for GAS, and history of...