First report of Bovine Viral Diarrhea Virus antigen from pneumonic cattle in Sudan. Journal of Advanced Veterinary and Animal Research, [S. l.], v. 2, n. 2, p. 153–157, 2015. Disponível em: https://www.banglajol.info/index.php/JAVAR/article/view/23209. Acesso em: 3 jul. 2026.