[1] Yangzhou Univ, Jiangsu Coinnovat Ctr Prevent & Control Important, Coll Vet Med, Yangzhou 225009, Jiangsu, Peoples R China
[2] Suez Canal Univ, Dept Anim Hyg Zoonoses & Anim Behav & Management, Fac Vet Med, Ismailia, Egypt
[3] Ross Univ, Sch Vet Med, Basseterre, St Kitts & Nevi
[4] St Louis Univ, Dept Pediat, St Louis, MO 63103 USA
[5] China Anim Hlth & Epidemiol Ctr, Lab Zoonosis, Qingdao, Shandong, Peoples R China