Makerere University School of Public Health, Institut Pasteur du Cambodge, Université Paris Cité, affiliation not provided to SSRN, affiliation not provided to SSRN, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Université Paris Cité, World Health Organization (WHO), University of Basel - Swiss Tropical and Public Health Institute, University of Basel - Swiss Tropical and Public Health Institute, affiliation not provided to SSRN, Université Paris Cité, University of Basel - Swiss Tropical and Public Health Institute and Institut Pasteur du Cambodge

Institute Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Government of Laos - Ministry of Health, Government of Laos - Ministry of Health, Government of Laos - Ministry of Health, World Health Organization (WHO), University of Melbourne - Murdoch Children's Research Institute, World Health Organization (WHO), Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institut Pasteur du Cambodge, Institute Pasteur du Cambodge, Institute Pasteur du Cambodge, University of Rouen - Rouen University Hospital, University of Rouen - Rouen University Hospital, Université Paris Cité, Université Paris Cité, Institut Pasteur du Cambodge, World Health Organization (WHO) and Institut Pasteur du Cambodge