1. San Diego State University Research Foundation, San Diego, California 92182, United States
2. School of Public Health, San Diego State University, San Diego, California 92182, United States
3. Conservation Science Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, California 92027, United States
4. Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanographic and Atmospheric Administration, La Jolla, California 92037, United States
5. Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, 22860 Ensenada, Baja California, Mexico