Beatriz Alvarez Vallejo Institutions of which they are part Senior researcher Infection and immunity in pediatric patients Vall Hebron Institut de Recerca Doctor Paediatric Infectious Diseases and Immunodeficiencies Unit Children's Hospital and Woman's Hospital Beatriz Alvarez Vallejo Institutions of which they are part Senior researcher Infection and immunity in pediatric patients Vall Hebron Institut de Recerca Doctor Paediatric Infectious Diseases and Immunodeficiencies Unit Children's Hospital and Woman's Hospital