About the Authors

Anna Llupià

annallupia@gmail.com

Affiliation Preventive Medicine and Epidemiology Unit, Barcelona Centre for International Health Research, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain

Alberto L. García-Basteiro

Affiliation Preventive Medicine and Epidemiology Unit, Barcelona Centre for International Health Research, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain

Guillermo Mena

Affiliation Preventive Medicine and Epidemiology Unit, Barcelona Centre for International Health Research, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain

José Ríos

Affiliations Clinical Pharmacology Service, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain, Biostatistics Unit, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain

Joaquim Puig

Affiliation Department of Applied Mathematics I, Universitat Politècnica de Catalunya, Barcelona, Catalonia, Spain

José M. Bayas

Affiliation Preventive Medicine and Epidemiology Unit, Barcelona Centre for International Health Research, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain

Antoni Trilla

Affiliation Preventive Medicine and Epidemiology Unit, Barcelona Centre for International Health Research, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain

Competing Interests

JMB has received fees for lectures, advice and participation in working groups funded by the pharmaceutical industry. He has participated as principal investigator in clinical trials of vaccines (influenza vaccines, and others) promoted by GlaxoSmithKline and Sanofi Pasteur MSD. All other authors declare they have no competing interests. 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: AL JP. Performed the experiments: AL AT GM JMB. Analyzed the data: AL AGB JR GM JP. Wrote the paper: AL.