About the Authors

Patrick Gérardin

Affiliations Neonatal and Pediatric Intensive Care Unit, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France , Center of Clinical Investigation–Clinical Epidemiology (CIC-EC, INSERM), Saint-Pierre, La Réunion, France

Georges Barau

Affiliation Department of Gynecology and Obstetrics, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Alain Michault

Affiliation Department of Microbiology, Pôle des Sciences Biologiques, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Marc Bintner

Affiliation Department of Neuroradiology, Pôle de Radiologie, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Hanitra Randrianaivo

Affiliation Fetal Medicine and Fetopathology Unit, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Ghassan Choker

Affiliation Neonatal and Pediatric Intensive Care Unit, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Yann Lenglet

Affiliation Department of Gynecology and Obstetrics, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Yasmina Touret

Affiliation Department of Gynecology and Obstetrics, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Anne Bouveret

Affiliation Department of Gynecology and Obstetrics, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Philippe Grivard

Affiliation Department of Microbiology, Pôle des Sciences Biologiques, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Karin Le Roux

Affiliation Department of Microbiology, Pôle des Sciences Biologiques, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Séverine Blanc

Affiliation Department of Neuroradiology, Pôle de Radiologie, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Isabelle Schuffenecker

Affiliation National Reference Center for Arboviruses, Institut Pasteur, Lyon, France

Thérèse Couderc

Affiliations Institut Pasteur, Microorganisms and Host Barriers Group, F-75015, Paris, France , Inserm, Equipe Avenir U604, F-75015, Paris, France

Fernando Arenzana-Seisdedos

Affiliations Institut Pasteur, Molecular Viral Pathogenesis Unit, F-75015, Paris, France , Inserm U819, F-75015, Paris, France

Marc Lecuit

To whom correspondence should be addressed. E-mail: mlecuit@pasteur.fr

These authors are joint senior authors on this work.

Affiliations Institut Pasteur, Microorganisms and Host Barriers Group, F-75015, Paris, France , Inserm, Equipe Avenir U604, F-75015, Paris, France , Department of Infectious Diseases and Tropical Medicine, Necker-Pasteur Center for Infectious Diseases, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, F-75015, Paris, France

Pierre-Yves Robillard

These authors are joint senior authors on this work.

Affiliation Neonatal and Pediatric Intensive Care Unit, Pôle Mère-Enfant, Groupe Hospitalier Sud-Réunion, Saint-Pierre, La Réunion, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

P. Gérardin, G. Choker, and P.Y. Robillard participated in the clinical management and the data collection for pediatric cases. G. Barau, Y. Lenglet, Y. Touret, and A. Bouveret did the same for parturient women. M. Bintner and S. Blanc performed neuroimaging. H. Randrianaivo performed autopsies on fetuses. A. Michault and K. Le Roux developed the RT-PCR and adapted the IgM serology assays. P. Grivard helped A. Michault with virology. I. Schuffenecker validated the RT-PCR and IgM serology assays. F. Arenzana-Seisdedos helped set up the collaboration between the Institut Pasteur and the GHSR. T. Couderc and M. Lecuit performed the placental and animal model studies. P. Gérardin and P.Y. Robillard designed the study, and reviewed the data for consistency and errors. P. Gérardin, A. Michault, and M. Lecuit analyzed the data and wrote the manuscript with the help of G. Barau and P.Y. Robillard.