Nelson Mena, University of Miami (IMAGE) University of Miami Caption Nelson Mena, an undergraduate student from the University of Costa Rica school of microbiology, is collecting mosquito larvae in Puntarenas, Costa Rica. Credit Adriana Troyo and Olger Calderon 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.