1. Infectious Diseases Unit; Clinical Medicine Department; Elche General University Hospital; University Miguel Hernández; Alicante Spain
2. Department of Psychiatry; Sant Joan d'Alacant University Hospital; Alicante Spain
3. National Centre for Epidemiology; Carlos III Health Institute; Madrid Spain
4. Infectious Diseases Service; Ramón y Cajal University Hospital; Madrid Spain
5. Infectious Diseases Programme; Parc Taulí Hospital; Sabadell Barcelona Spain
6. Infectious Diseases Unit; Canarias University Hospital; Santa Cruz de Tenerife Spain
7. Infectious Diseases Unit; Joan XXIII University Hospital, University Rovira i Virgili; Tarragona Spain
8. Infectious Diseases Unit; Asturias Central University Hospital; Oviedo Spain