1. Laboratory of Virology (LIM 52), Department of Infectious Diseases Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
2. Senne Liquor Diagnóstico São Paulo Brazil
3. Clinical Laboratory Hospital Israelita Albert Einstein São Paulo Brazil
4. Department of Obstetrics and Gynecology Weill Cornel Medicine New York New York USA