1. Department of Virology, Chair of Microbiology, Jagiellonian University Medical College, Cracow, Poland
2. Chair and Clinic of Hematology, Jagiellonian University Medical College, Cracow, Poland
3. Department of Virology, Chair of Microbiology, Jagiellonian University Medical College, Cracow, Poland and Laboratory of Molecular Genetics and Virology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Cracow, Poland