1. School of Medicine, Oregon Health & Science University, Portland, Oregon;
2. School of Public Health, Oregon Health & Science University—Portland State University, Portland, Oregon;
3. Center for Global Health Tumbes, Universidad Peruana Cayetano Heredia, Lima, Peru;
4. School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru;
5. Department of Microbiology, Universidad Peruana Cayetano Heredia, Lima, Peru