1 Department of Microbiological Diagnostics and Infectious Immunology, Medical University of Bialystok, Bialystok, Poland. Electronic address: piotr.majewski@umb.edu.pl.
2 Regional Centre for Transfusion Medicine in Bialystok, Bialystok, Poland.
3 Department of Microbiological Diagnostics and Infectious Immunology, Medical University of Bialystok, Bialystok, Poland.
4 Department of Hematology, Medical University Hospital of Bialystok, Bialystok, Poland.
5 Regional Centre for Transfusion Medicine in Bialystok, Bialystok, Poland; Department of Hematology, Medical University Hospital of Bialystok, Bialystok, Poland.