About the Authors

Ingrid C. Weel

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Rebecca N. Baergen

Affiliation Department of Pathology and Laboratory Medicine, Weill Cornell Medical College – New York Presbyterian Hospital, New York, United States of America

Mariana Romão-Veiga

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Vera T. Borges

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Vanessa R. Ribeiro

Affiliation Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Steven S. Witkin

Affiliation Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, United States of America

Camila Bannwart-Castro

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Jose C. Peraçoli

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Leandro De Oliveira

Affiliation Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Maria T. Peraçoli

peracoli@ibb.unesp.br

Affiliation Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University, 18618–970, Botucatu, São Paulo, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MTP JCP ICW. Performed the experiments: ICW MRV VRR CBC. Analyzed the data: ICW MTP RNB SSW. Contributed reagents/materials/analysis tools: ICW MTP MRV. Wrote the paper: ICW JCP MTP. Selected pregnant women: JCP VTB LDO.