Prasad Liyanage, Umea University (IMAGE) Umea University Caption Prasad Liyanage is doctoral student at Umeå University in Sweden and Medical Officer for dengue control in Kalutara district at the Sri Lankan Ministry of Health. Credit Lena Mustonen Usage Restrictions This photo may only be used in contexts related to this news release. 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.