1. Infection Control Committee, Hospital e Maternidade Santa Joana (Santa Joana Maternity Hospital), São Paulo, SP, Brazil
2. Neonatalogy Department, Hospital e Maternidade Santa Joana (Santa Joana Maternity Hospital), São Paulo, SP, Brazil
3. Microbiology Department, Hospital e Maternidade Santa Joana (Santa Joana Maternity Hospital), São Paulo, SP, Brazil