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 People "Animal People News", which covered current events related to animal issues worldwide. The newspaper was retired in 2014 following a split within the board of directors, and in 2015 Animal People launched a new project, the Animal People Forum, an online magazine and social networking site for people interested in animal rights, welfare, and conservation. Kim Bartlett was hired as editor of "The Animals' Agenda" news magazine in August 1986, where Patrice Greanville was already associate editor. Merritt Clifton had been freelancing for "The Animals' Agenda", and was hired by Bartlett and Greanville as the feature writer in November 1986.