1. Department of Microbiology and Ecology, University of Valencia. Dr. Moliner 50, Burjassot, Spain
2. ERI BIOTECMED, Universitat de València. Dr Moliner 50, Burjassot, Spain
3. Division of Infectious Disease, Brigham and Women's Hospital, Boston, Massachusetts, United States of America
4. Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America
5. Howard Hughes Medical Institute, Boston, Massachusetts, United States of America