Abstract Respiratory syncytial virus (RSV) is an RNA that belongs to the Pneumovirus genus of Paramyxoviridae family. The aim this study was evaluate expressions inducible nitric oxide synthetase (iNOS), CD3 (pan T cells), and CD8 (cytotoxic cells) in lamb lungs naturally infected with RSV using immunohistochemistry (IHC). For purpose, 100 pneumonic 10 control lung tissue samples were taken fro...

El Virus Sincitial Respiratorio (VSR) es uno de los agentes causales más frecuentes enfermedades respiratorias en niños menores 2 años, el virus respiratorio sincitial un pneumovirus ARN monocatenario, sentido negativo, la familia pneumoviridae. contiene 10 genes total y cada codifica una proteína diferente, a excepción del gen M2, cual da lugar dos proteínas, teniendo así 11 proteínas virales ...

avian pneumovirus (apv) causes turkey rhinotracheitis (trt) and swollen head syndrome (shs) of chickens, which is usually accompanied by secondary bacterial infections that increase mortality. in iran, some serological studies indicated that apv infection is endemic in commercial poultry industry. in this study we diagnosed apv genome molecularly in suspected broiler flock (4 weeks) in iran and...