1. Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
2. Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
3. Sanofi Pasteur, Marcy-l’Etoile, France
4. Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
5. Enteric Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, USA
6. Department of Pediatrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA