1. Laboratório de Enterovírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
2. Laboratório de Enterovírus, Seção de Virologia, Instituto Evandro Chagas/IEC, Ananindeua, Pará, Brazil
3. Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases, Division of Viral Diseases, Atlanta, Georgia, USA