1. Laboratorio de Biología Molecular; Hospital Luis Vernaza; Guayaquil Ecuador
2. Department of Medicine; Division of Infectious Diseases; Emory University School of Medicine; Atlanta GA USA
3. Servicio de Gineco-Obstetricia; Hospital Enrique C. Sotomayor; Guayaquil Ecuador
4. Department of Pathology; Stanford University School of Medicine; Stanford CA USA
5. Department of Medicine; Division of Infectious Diseases and Geographic Medicine; Stanford University School of Medicine; Stanford CA USA
6. Escuela Superior Politécnica del Litoral; ESPOL; ESPAE Graduate School of Management; Guayaquil Ecuador
7. Geisel School of Medicine; Dartmouth College; Hanover NH USA
8. Division of Reproductive Sciences; Department of Obstetrics, Gynecology and Reproductive Sciences; Yale University School of Medicine; New Haven CT USA