1. Department of Pharmaceutical Health Services Research, University of Maryland, Baltimore, MD, USA
2. Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
3. UPMC Magee-Women’s Hospital, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
4. Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada
5. Immunization, Infectious Disease and Public Health Preparedness, American College of Obstetricians and Gynecologists, Washington, DC, USA
6. Yale Institute for Global Health, New Haven, CT, USA
7. Department of Internal Medicine (Infectious Diseases), Yale School of Medicine, New Haven, CT, USA