Leucosis

	Leucosis Leucosis is a leukemia-like malignant viral disease that is found in animals, particularly poultry and cattle. Types of leucosis * Bovine leucosis Enzootic bovine leucosis, caused by bovine leukemia virus. Sporadic bovine leucosis ** Calf lymphosarcoma * Leucosis in pig * Leucosis in horses * Leucosis in sheep * Feline leucosis ** Feline leukemia virus Feline leukemia virus (FeLV) is a retrovirus that infects cats. FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved. If not defeated by the animal's immune system, the virus weakens the cat's i ... * Avian leucosis and related diseases Avian sarcoma leukosis virus * Lymphoid leucosis * Erythroblastosis * Osteopetrosis * Myeloblastose * MyelocytomatosisH. Graham Purchase and L.N. Payne, Leukosis/sarcoma Group, in ''Diseases of poultry'', ed. by M.S. Hofstad, Iowa State University Press, Ames, Iowa, USA , p. 360-405 References Animal diseases Ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bovine Leukemia Virus Bovine leukemia virus (BLV) is a retrovirus which causes enzootic bovine leukosis in cattle. It is closely related to the human T‑lymphotropic virus type 1 (HTLV-I). BLV may integrate into the genomic DNA of B‑lymphocytes as a DNA intermediate (the provirus), or exist as unintegrated circular or linear forms. Besides structural and enzymatic genes required for virion production, BLV expresses the Tax protein and microRNAs involved in cell proliferation and oncogenesis . In cattle, most infected animals are asymptomatic; leukemia is rare (about 5% of infected animals), but lymphoproliferation is more frequent (30%). Vectors BLV is vectored by insects ''Anopheles albimanus'', ''Anopheles freeborni'', ''Anopheles quadrimaculatus'', ''Anopheles stephensi'', ''Stomoxys calcitrans'', and various ''Horse-fly, Tabanidae'' including ''Tabanus atratus'' and ''Tabanus fuscicostatus'' and by the tick ''Boophilus microplus''. Disease in cattle Transmission Many potential routes of BLV tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Feline Leukemia Virus Feline leukemia virus (FeLV) is a retrovirus that infects cats. FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved. If not defeated by the animal's immune system, the virus weakens the cat's immune system, which can lead to diseases which can be lethal. Because FeLV is cat-to-cat contagious, FeLV+ cats should only live with other FeLV+ cats. FeLV is categorized into four subgroups, A, B, C and T. An infected cat has a combination of FeLV-A and one or more of the other subgroups. Symptoms, prognosis and treatment are all affected by subgroup. FeLV+ cats often have a shorter lifespan, but can still live "normal", healthy lives. Signs and symptoms The signs and symptoms of infection with feline leukemia virus are quite varied and include loss of appetite, poor coat condition, anisocoria (uneven pupils), infections of the skin, bladder, and respiratory tract, oral disease, seizures, lymphadenopathy (swollen lymph nodes), ski ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Avian Sarcoma Leukosis Virus Avian sarcoma leukosis virus (ASLV) is an endogenous retrovirus that infects and can lead to cancer in chickens; experimentally it can infect other species of birds and mammals. ASLV replicates in chicken embryo fibroblasts, the cells that contribute to the formation of connective tissues. Different forms of the disease exist, including lymphoblastic, erythroblastic, and osteopetrotic. Avian sarcoma leukosis virus is characterized by a wide range of tumors, the most common of which are lymphomas. Lymphoid leukosis is the most common form of this disease and with typical presentation of gradual onset, persistent low mortality, and neoplasia of the bursa. The disease is also characterized by an enlarged liver due to infiltration of cancerous lymphoid cells. In addition, other abdominal organs and the bursa of Fabricius are often infected. Occurrence Lymphoid leukosis has a worldwide distribution, and is most commonly found in birds 16 weeks or older. History Sarcoma in chicken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Lymphoid Leucosis Lymphoid leucosis is a disease that affects chickens, caused by the retrovirus ''Avian leukosis virus''. It is a neoplastic disease caused by a virus, which may take the form of a tumor of the bursa of Fabricius and may metastasize to other tissues of the chicken and cause enlargement and swelling of the abdomen. Symptoms Symptoms include enlargement of abdomen, bursa, weight loss, weakness and emaciation, and depression. The disease is more likely to affect chicken around five to eight months of age who are more vulnerable. Green diarrhea Diarrhea, also spelled diarrhoea, is the condition of having at least three loose, liquid, or watery bowel movements each day. It often lasts for a few days and can result in dehydration due to fluid loss. Signs of dehydration often begin wi ... tends to develops at the terminal stage. References Bird diseases Animal viral diseases Alpharetroviruses {{veterinary-med-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Animal Diseases The following are lists of animal diseases: * List of aquarium diseases * List of dog diseases * List of feline diseases * List of diseases of the honey bee * List of diseases spread by invertebrates * Poultry disease * Zoonosis#Lists of diseases, infectious diseases that have jumped from an animal to a human See also * :Animal diseases * Veterinary medicine * Foot-and-mouth disease Foot-and-mouth disease (FMD) or hoof-and-mouth disease (HMD) is an infectious disease, infectious and sometimes fatal virus (biology), viral disease that affects cloven-hoofed animals, including domestic and wild Bovidae, bovids. The virus causes ... References {{DEFAULTSORT:animal diseases, Lists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]