Caprine arthritis encephalitis virus Caprine arthritis encephalitis virus Caprine arthritis encephalitis virus (CAEV) is a retrovirus which infects goats and cross-reacts immunologically with HIV, due to being from the same family of viruses. CAEV cannot be transmitted to humans, including through the consumption of milk from an infected goat. There is no evidence that CAEV can cure HIV in humans. CAEV is commonly transferred within the goat species by ingestion of colostrum or milk from an infected goat, and to a less extent, cross species CAEV transfer by sheep is possible . CAEV adversely affects the immune system of its host, causing a disease
Tsaidamotherium Tsaidamotherium Tsaidamotherium is an extinct genus of Late Miocene ovibovinid caprine from the Tibetan Plateau of Northwestern China. Both known species are extremely unusual in that the horns are of unequal sizes: the left horn core is several times smaller than the right horn core. The closest living relative of "Tsaidamotherium" is probably the Muskox, "Ovibos moschatus". The generic name refers to the Qaidam Basin, the region where the holotype of the type species, "T. hedini" was found. The specific name "hedini" honors Dr Sven Hedin. The specific name "brevirostrum" refers to the short muzzle of "T. brevirostrum"'s holotype skull.