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).
https://en.wikipedia.org/wiki/Ovine_pulmonary_adenocarcinoma
above. psyclon nine hymn to the angel's descent
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