Jaagsiekte sheep retrovirus Jaagsiekte sheep retrovirus Jaagsiekte sheep retrovirus (JSRV) is a betaretrovirus which is the causative agent of a contagious lung cancer in sheep, called ovine pulmonary adenocarcinoma. JSRV is the virus that is the cause of the contagious lung tumors in sheep called ovine pulmonary adenocarcinoma (OPA). The disease has also been called "jaagsiekte", after the Afrikaans words for "chase" ("jaag") and "sickness" ("siekte"), to describe the respiratory distress observed in an animal out of breath from being chased, indicating the breathing difficulty experienced by infected sheep. Transmission of virus is through aerosol spread between sheep. The exogenous infectious form of
Animal Hospital Animal Hospital Animal Hospital is a British television show starring Australian singer and TV presenter Rolf Harris that ran on BBC One from 1994 until 2004. The series featured animal welfare stories from many RSPCA hospitals, including Harmsworth Animal Hospital in North London. Harmsworth Animal Hospital in North London was the first of three RSPCA hospitals that opened their doors to allow the BBC to produce this factual television show which ran for over a decade. The programmes were presented by Rolf Harris. After Harmsworth, the series moved to the Putney Animal Hospital in South London, and then to Salford