Karl Hagman, Karolinska Institutet (IMAGE) Karolinska Institutet Caption Karl Hagman, infectious diseases consultant at Danderyd Hospital and doctoral student at Karolinska Institutet's Department of Clinical Sciences at the same hospital. Photo: Cecilia Larsson Lantz, Danderyd Hospital. Credit Cecilia Larsson Lantz, Danderyd Hospital Usage Restrictions The photo may only be used in connection to reports about this study. 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.