Labwork (IMAGE) University of California - Berkeley Caption A laboratory technician tests samples for signs of sexually transmitted infections as part of the RESPECT study in Tanzania. Credit Photo by Damien de Walque, World Bank Usage Restrictions Photo must include credit. 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.