1. Institute of Child Health and Human Development, University of the Philippines Manila-National Institutes of Health, Manila, Philippines
2. Division of Epidemiology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
3. Key Laboratory of Medical Molecular Virology of MoE & MoH, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
4. National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
5. Center for Vaccine Development, University School of Medicine, Baltimore, MD, USA
6. Department of Research, Epicentre, Paris, France