Aunyaratana Thontiravong, Patchareeporn Ninvilai, Wikanda Tunterak, Nutthawan Nonthabenjawan, Supassma Chaiyavong, Kingkarn Angkabkingkaew, Chatthapon Mungkundar, Woranuch Phuengpho, Kanisak Oraveerakul, and Alongkorn Amonsin
Figure 1. Clinical signs and pathologic lesions of duck Tembusu virus (DTMUV)–infected ducks, Thailand. A, B) Clinical signs; DMTUV-infected ducks showed neurologic signs, including inability to stand, ataxia, and paralysis. C) Gross lesion; severe hemorrhage and regression of ovarian follicles. D, E) Histopathologic lesion; moderate multifocal gliosis (black arrow) and perivascular cuffing (white arrow) in cerebellum (D) and spinal cord (E). Scale bars indicate 100 μm (D) and 50 μm (E). F) Chicken embryos infected with DTMUV strain DK/TH/CU-1. Normal embryo is shown at left; infected embryos at right died 3–5 days after inoculation, with severe cutaneous hemorrhage.