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Parvoviruses are among the smallest viruses (hence the name, from Latin parvus meaning small) and are 18–28 nm in diameter. [16] Parvoviruses can cause disease in some animals, including starfish and humans. Because the viruses require actively dividing cells to replicate, the type of tissue infected varies with the age of the animal.
The vast majority of human and animal viruses do not cause cancer, probably because of longstanding co-evolution between the virus and its host. Oncoviruses have been important not only in epidemiology , but also in investigations of cell cycle control mechanisms such as the retinoblastoma protein .
Causes include bacterial or viral infection, toxic insult, cancer, copper storage diseases, or it may be idiopathic. [182] Dental disease is very common. Calculus is the most obvious sign, but gingivitis progressing to periodontitis is what results in tooth loss. Treatment involves scaling and polishing of the teeth under general anesthesia and ...
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. [ 2 ]
Pages in category "Animal viral diseases" The following 200 pages are in this category, out of approximately 210 total. This list may not reflect recent changes .
Herpesviruses also cause cancer in animals, especially leukemias and lymphomas. [13] Human T cell lymphotropic virus was the first human retrovirus discovered by Robert Gallo and colleagues at NIH. [20] The virus causes Adult T-cell leukemia, a disease first described by Takatsuki and colleagues in Japan [21] and other neurological diseases ...
While SARS was the No. 2 leading cause of deaths, at 922, it caused a significantly smaller amount of infections, mainly impacting Asia—as did the Machupo and Nipah viruses, which caused 529 ...
In hatcheries the diseases are often controlled by increasing the temperature to 15–18 °C. [20] Like all vertebrates, fish suffer from herpes viruses. These ancient viruses have co-evolved with their hosts and are highly species-specific. [21] In fish, they cause cancerous tumours and non-cancerous growths called hyperplasia. [22]