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 law and using the law to protect the lives and advance the interests of animals. In the Swiss canton of Zurich an animal lawyer, Antoine Goetschel, was employed by the canton government to represent the interests of animals in animal cruelty cases from 2007 to 31 December 2010, when the Zurich Animal Advocate position was abolished. In this capacity, Goetschel attempted to ensure that Swiss animal protection laws, which are among the strictest in the world, were correctly enforced. The UK Centre for Animal Law (A-law) is the UK's leading animal law charity. It publishes "The UK Journal of Animal Law"