1. Respiratory Virus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation/Fiocruz, Rio de Janeiro, CEP 21040-360, Brazil
2. Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, Salvador, Bahia, CEP 21040-360, Brazil
3. Enterovirus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation/Fiocruz, Rio de Janeiro, CEP 21040-360, Brazil