1. Department of Obstetrics and Gynecology, Federal University of Jundiaí, São Paulo, Brazil
2. Department of Obstetrics, Federal University of São Paulo, São Paulo, Brazil
3. Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
4. Department of Biological Sciences and the Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, USA
5. Department of Obstetrics and Gynecology, Federal University of Ceará, Ceará, Brazil
6. Department of Obstetrics and Gynecology, University of São Paulo Medical School, São Paulo, Brazil
7. Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, USA
8. Department of Preventive Medicine, Federal University of São Paulo, São Paulo, Brazil
9. Department of Obstetrics and Gynecology, São Paulo State University Medical School, Botucatu, Brazil
10. Virology Laboratory (LIM 52), Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil