TATJANA VILIBIC-CAVLEK1,2, LJUBO BARBIC3, VLADIMIR STEVANOVIC3, GORANKA PETROVIC4 and GORDANA MLINARIC-GALINOVIC1,2 1Department of Virology, Croatian National Institute of Public Health, Zagreb, Croatia 2School of Medicine University of Zagreb, Zagreb, Croatia 3Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine University of Zagr...