Quan Yuan Liu-Wei Song Daniela Cavallone Francesco Moriconi Beatrice Cherubini Piero Colombatto Filippo Oliveri Barbara Agata Coco Gabriele Ricco Ferruccio Bonino James Wai Kuo Shih Ning-Shao Xia Maurizia Rossana Brunetto Wenyu Lin

samaneh abbasi health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of virology, ahvaz jundishapur university of medical sciences, ahvaz, ir iran manoochehr makvandi health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of virology, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6133354389, fax: +98-6133361544 gharib karimi iranian blood transfusion organization (ibto), tehran, ir iran niloofar neisi department of virology, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

V Colić-Cvrlje S Naumovski-Mihalić M Prskalo A Colić B Cvjeticanin B Sabarić

R Brouwer G J Hengstman W Vree Egberts H Ehrfeld B Bozic A Ghirardello G Grøndal M Hietarinta D Isenberg J R Kalden I Lundberg H Moutsopoulos P Roux-Lombard J Vencovsky A Wikman H P Seelig B G van Engelen W J van Venrooij

N I Abdou H Wall H B Lindsley J F Halsey T Suzuki