1. Department of Microbiology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, ul. M Skłodowskiej-Curie 9, 85094 Bydgoszcz, Poland
2. Department of Infectious Diseases and Hepatology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, ul. Św Floriana 12, 85030 Bydgoszcz, Poland