1. Department of Infectious Diseases, Kazan State Medical Academy, Kazan, Tatarstan 420012, Russia
2. Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
3. School of Veterinary Medicine and Science, University of Nottingham, Loughborough LE12 9RH, USA
4. School of Life Sciences, University of Nottingham, University Campus, Nottingham NG7 2RD, USA