Celso Granato1, Carolina Lázari2, Paulo C Serafini3. 1. Discipline of Infectious Disease, São Paulo Federal University, São Paulo, Brazil; Fleury Medical Group, São Paulo, Brazil. 2. Fleury Medical Group, São Paulo, Brazil; Department of Infectious Diseases, Faculty of Medicine, University of São Paulo, São Paulo, Brazil. 3. Department of Obstetrics and Gynecology, Discipline of Gynecology, University of São Paulo, São Paulo, Brazil; Reproductive Endocrinology, Huntington Reproductive Medicine, São Paulo, Brazil; Human Reproductive Service, University of Sao Paulo, São Paulo, Brazil. Electronic address: pauloivf@aol.com.