About the Authors

Luis E. López-Cortés

Affiliation Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain

Juan Gálvez-Acebal

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Medicina, Universidad de Sevilla, Seville, Spain

María D. del Toro

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Medicina, Universidad de Sevilla, Seville, Spain

Carmen Velasco

Affiliations Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Microbiología, Universidad de Sevilla, Seville, Spain

Marina de Cueto

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain

Francisco J. Caballero

Affiliation Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain

Miguel A. Muniain

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Medicina, Universidad de Sevilla, Seville, Spain

Álvaro Pascual

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Microbiología, Universidad de Sevilla, Seville, Spain

Jesús Rodríguez-Baño

jesusrb@us.es

Affiliations Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain, Spanish Network for Research in Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain, Departamento de Medicina, Universidad de Sevilla, Seville, Spain

Competing Interests

JRB has served as consultant and speaker for Pfizer, Roche, Astellas, Novartis and Merck. A.P. has been a consultant for Pfizer; has served as speaker for Wyeth, and Pfizer; and has received research support from Pfizer, Wyeth, and Novartis. All other authors had no conflicts of interest. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JRB AP MAM LELC. Performed the experiments: LELC JGA MDT. Analyzed the data: LELC JGA MDT MAM JRB. Contributed reagents/materials/analysis tools: MAM AP LELC JRB. Wrote the manuscript: LELC JRB. Process and interpretation of microbiological isolates: CV MC FJC.