1. Dermatology Department Hospital Alvarez Buylla MieresSpain
2. Vaccines Unit Preventive Medicine and Public Health Department Hospital Alvarez Buylla MieresSpain
3. WHO Collaborating Centre for Vaccine Safety Santiago de Compostela Spain
4. Emergency Department Hospital Alvarez Buylla MieresSpain
5. Dermatology Department Hospital Universitario de Cabueñes Gijón Spain
6. Pathological Anatomy Department Hospital Alvarez Buylla Mieres Spain
7. Translational Pediatrics and Infectious Diseases Hospital Clínico Universitario Universidad de Santiago de Compostela (USC) Santiago de Compostela Spain
8. Genetics, Vaccines and Pediatric Infectious Diseases Research Group (GENVIP) Instituto de Investigación Sanitaria de Santiago Universidad de Santiago de Compostela (USC) Santiago de Compostela Spain