Ovine pulmonary adenocarcinoma 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 years of age). Clinical signs resemble a non-specific progressive pneumonia, including poor body condition and, particularly after exercise, respiratory difficulty. Unless a concurrent lung infection is present, affected sheep continue to eat. The only sign specific to OPA is a watery nasal discharge, consisting
Animal Cops following: The Animal Cops series inspired the formation of a 500-strong animal police force (), with full law-enforcement powers in the Netherlands, as agreed by the Dutch government coalition which formed in 2010. The first Dutch animal cops were officially certified on December 2, 2011 by the Security and Justice minister Ivo Opstelten. The Party for the Animals criticized the plan because the animal cops are only allowed to investigate the abuse of pets, not the abuse of farm animals. For the same reason, the Dutch animal cops are sometimes mockingly called the "guinea pig police" (). Animal Cops Animal