University of Barcelona, Universidad Politécnica de Madrid, City University of New York (CUNY) - Graduate School of Public Health & Health Policy, University of Barcelona, University of Barcelona, University of Alcala, Gregorio Maranon Health Research Institute - Department of Clinical Microbiology and Infectious Diseases, University of Barcelona, University of Alcala, University of Barcelona, University of Barcelona, University of Alcala, University of Barcelona, University of Alcala, Universidad de Alcalá, University of Alcala and City University of New York (CUNY) - Graduate School of Public Health & Health Policy