Eili Klein is a graduate student in the ecology and evolutionary biology department at Princeton University studying the evolution of resistance to antimicrobials. He is also a former senior research assistant at RFF where he worked on trends in the incidence of HAIs, particularly MRSA, and policy options to alleviate the burden. Prior to his work at RFF, he received his masters in international environmental policy from Johns Hopkins School of Advanced International Studies in 2005, and his bachelors in economics from Columbia University in 1998