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 Place Animal Place Animal Place, which was founded in 1989, is one of the oldest and largest sanctuaries for farmed animals in the United States. Nestled on 600-acres in Grass Valley, California, Animal Place provides refuge to hundreds of neglected farmed animals. In addition to permanent sanctuary, Animal Place’s Rescue Ranch is a 60-acre adoption center, placing needy farmed animals into permanent homes. Animal Place extends support to all life with a special emphasis on farmed animals. This is executed by providing permanent sanctuary, education, legislation and appropriate placement of needy animals. Animal Place (Grass Valley, CA) won first prize in