Leila Zeidabadinejad, Maryam Dehestani, Sedigheh Pourestarabadi,

maryam sadeh department of pathobiology, school of veterinary medicine, shiraz university, shiraz, ir iran roya firouzi department of pathobiology, school of veterinary medicine, shiraz university, shiraz, ir iran abdollah derakhshandeh department of pathobiology, school of veterinary medicine, shiraz university, shiraz, ir iran; department of pathobiology, school of veterinary medicine, shiraz university, shiraz, ir iran. tel: +98-7136138666, fax: +98-7132286940 mohammad bagher khalili school of paramedicine, shahid sadoughi university of medical sciences, yazd, ir iran fanrong kong centre for infectious diseases and microbiology laboratory services, icpmr-pathology west, westmead hospital, university of sydney, new south wales 2145, australia timothy kudinha charles sturt university, new south wales, australia

Hua Qiao, Huxiong Xia, Lin Li, Xiaoyun Zhang, Yanbin Shi, Ying Chen,