Ovine pulmonary adenocarcinoma as an animal model for human lung cancer, because OPA is histologically similar to human adenocarcinoma in situ of the lung. Dolly the sheep, the first mammal successfully cloned from an adult somatic cell, was euthanized after it was confirmed that she had OPA. Ovine pulmonary adenocarcinoma Ovine pulmonary adenocarcinoma (OPA), also known as ovine pulmonary adenomatosis, or jaagsiekte, is a chronic and contagious disease of the lungs of sheep and goats. OPA is caused by a retrovirus called jaagsiekte sheep retrovirus (JSRV). The disease has a long incubation period, and therefore signs usually occur in adult animals (over 2
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