1. Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition Salvador Zubiràn, Mexico City, Mexico
2. Department of Microbiology, Institute for Immunology and Immunological Disease, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
3. Public Health England, Microbiology Services, Porton Down, Salisbury, Wiltshire, United Kingdom
4. Department of Molecular Medicine, University of Padova, Padua, Italy
5. Department of Biology, University of Padova, Padua, Italy
6. Departamento de Microbiología, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain