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The opossum passes the parasite through feces. Horses contract EPM from contaminated feed or water. Horses cannot pass the disease among themselves; that is, one horse cannot contract the disease from another infected horse. The horse is a dead-end, or aberrant, host of the parasite.
Wesselsbron (WSL) virus is an arthropod-borne virus in the genus Flavivirus of the family Flaviviridae [1] that causes Wesselsbron disease in cattle, sheep, goats, camels, pigs, donkeys, horses, ostriches, and wild ruminants [2] with occasional incidental spillover to humans. [3]
Spores of C. novyi escape from the gut and lodge in the liver, where they remain dormant until some injury creates anaerobic conditions for them to germinate, causing local necrosis and widespread damage to the microvascular system, resulting in subcutaneous bleeding and blackening of the skin, hence the common name "black disease".
Three horses survive, for now. Trainer Heath Taylor has had to euthanize seven horses after an outbreak of EIA at his Los Alamitos barn. Three horses survive, for now.
Five more horses have died at a barn at Los Alamitos, bringing the total to 12 deaths as a result of an outbreak of equine infectious anemia.
A map shows distribution of chronic wasting disease among wild and captive animal populations in North America as of October 2023. On May 7, 2024, officials from the California Department of Fish ...
Dictyocaulus viviparus found in the bronchi of a calf during necropsy (arrow). Parasitic bronchitis, also known as hoose, husk, or verminous bronchitis, [1] is a disease of sheep, cattle, goats, [2] and swine caused by the presence of various species of parasite, commonly known as lungworms, [3] in the bronchial tubes or in the lungs.
‘These animals are essentially family:’ Horses, sheep and ducks not forgotten in California wildfires amid rescue efforts Nic F. Anderson, CNN January 23, 2025 at 10:00 AM