Seroprevalence of some common respiratory viral infections of sheep

ABSTRACT

Respiratory tract diseases represent a major causes of economic loss of sheep. This study was planned to know some light on respiratory viral infection in sheep. A total of 300 sheep serum samples were collected from 2 Egyptian Governorate [Kafer El-Sheikh and Alexandria]. The collected sera represented age varied from [3-12 months]. These samples were tested serologically by Enzyme Linked Immunosorbent Assay [ELISA] Technique and Serum Neutralization Test "SNT" for detecting specific antibodies of parainfluenza virus type 3 [PI-3], infectious bovine rhinotracheitis virus [IBR] and adenoviruses. Serological examination revealed the presence of specific antibodies against respiratory viruses used. Out of 300 sheep serum samples [7.8%, 16.2% and 17.2%] for IBR, PI-3 and adenovirus respectively are detected by ELISA. While, they were 3.9%, 11.0% and 9.3% respectively by SNT