1. Department of Preventive Medicine and Public Health, University Hospital Puerta del Mar, Cadiz, Spain
2. Surveillance Department, Andalusian Regional Ministry of Health, Seville, Spain
3. Network Cooperative Research in Tropical Diseases (RICET), Carlos III Institute of Health (ISCIII), Madrid, Spain
4. Institute of Biosanitary Research, Granada, Spain
5. Department of Microbiology, University Hospital Virgen de las Nieves, Granada, Spain
6. Department of Preventive Medicine and Public Health, University Hospital Virgen del Rocío, Seville, Spain
7. Transfusion Tissues and Cells Center, Seville, Spain
8. General Secretary for Public Health and Consumption, Regional Ministry of Health, Andalusia, Spain