1 Histocompatibility and Immunogenetics Unit, National Center of Microbiology, Carlos III Institute of Health, Cra. Majadahonda a Pozuelo Km.2. Majadahonda 28220 Madrid, Spain.
2 Viral Hepatitis Unit, National Center of Microbiology, Carlos III Institute of Health, Ctra. Majadahonda a Pozuelo Km.2, Majadahonda 28220 Madrid, Spain.
3 Respiratory Viruses Unit, National Center of Microbiology, Carlos III Institute of Health, Ctra. Majadahonda a Pozuelo Km.2, Majadahonda 28220 Madrid, Spain; CIBER of Epidemiology and Public Health (CIBERESP), 28028 Madrid, Spain.
4 Viral Hepatitis Unit, National Center of Microbiology, Carlos III Institute of Health, Ctra. Majadahonda a Pozuelo Km.2, Majadahonda 28220 Madrid, Spain; CIBER of Epidemiology and Public Health (CIBERESP), 28028 Madrid, Spain. Electronic address: [email protected].