Press photo Jonas F. Ludvigsson (IMAGE) Karolinska Institutet Caption Professor Jonas F. Ludvigsson, Karolinska Institutet. Credit Alexander Donka. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.