1. Department of Pediatric Infectious Diseases University of Washington and Seattle Children's Research Institute Seattle WA USA
2. Department of Global Health University of Washington Seattle WA USA
3. Department of Physics University of Washington Seattle WA USA
4. Department of Medicine Division of Infectious Diseases and Pharmacology School of Medicine and Lineberger Comprehensive Cancer Center University of North Carolina at Chapel Hill Chapel Hill NC USA
5. Maternal and Child Health Research Program Department of Obstetrics and Gynecology Center for Research on Reproduction and Women's Health Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
6. Department of Comparative Medicine School of Medicine University of Washington Seattle WA USA
7. Department of Obstetrics and Gynecology School of Medicine University of Washington Seattle WA USA