1. Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Clayton, Apartado 0816-02852 Panamá, Smithsonian Tropical Research Institute (STRI), Ancón, Apartado 0843-03092 Panamá, and Department of Global Health, College of Public Health, University of South Florida, Tampa, Florida 33612