1. Okairos, via dei Castelli Romani 22, 00040 Pomezia (Rome), Italy.
2. Peter Medawar Building for Pathogen Research, South Parks Road, Oxford OX1 3SY, UK.
3. National Institute for Health and Research Biomedical Research Centre and Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford OX3 9DU, UK.
4. Istituto di Ricerche di Biologia Molecolare “P. Angeletti,” via Pontina km 30.600, 00040 Pomezia (Rome), Italy.
5. The Jenner Institute, University of Oxford, Roosevelt Drive, Oxford OX3 7DQ, UK.
6. CEINGE, via Gaetano Salvatore 486, 80145 Naples, Italy.