About the Authors

María R. Viñas

mrvinas@anlis.gov.ar

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Ezequiel Tuduri

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Alicia Galar

Affiliation Department of Medicine, Brigham and Women's Hospital, World Health Organization Collaborating Centre for Surveillance of Antimicrobial Resistance, Boston, Massachusetts, United States of America

Katherine Yih

Affiliation Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America

Mariana Pichel

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

John Stelling

Affiliation Department of Medicine, Brigham and Women's Hospital, World Health Organization Collaborating Centre for Surveillance of Antimicrobial Resistance, Boston, Massachusetts, United States of America

Silvina P. Brengi

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Anabella Della Gaspera

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Claudia van der Ploeg

Affiliation Servicio de Antígenos y Antisueros. Instituto Nacional de Producción de Biológicos (INPB) - ANLIS “Dr Carlos G. Malbran”, Buenos Aires, Argentina

Susana Bruno

Affiliation Servicio de Antígenos y Antisueros. Instituto Nacional de Producción de Biológicos (INPB) - ANLIS “Dr Carlos G. Malbran”, Buenos Aires, Argentina

Ariel Rogé

Affiliation Servicio de Antígenos y Antisueros. Instituto Nacional de Producción de Biológicos (INPB) - ANLIS “Dr Carlos G. Malbran”, Buenos Aires, Argentina

María I. Caffer

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Martin Kulldorff

Affiliation Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America

Marcelo Galas

Affiliation Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr C. G. Malbrán”, Buenos Aires, Argentina

Group MIDAS - Argentina

Membership of Group MIDAS – Argentina is provided in the Acknowledgments.

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JS MK MG. Performed the experiments: ET AG MG MRV SPB ADG MP. Analyzed the data: MRV ET AG KY MP SPB ADG JS MK MG. Contributed reagents/materials/analysis tools: SPB ADG CvdP SB AR MIC. Wrote the paper: MRV KY JS MK MP MG.