Search results
Results from the WOW.Com Content Network
Transmissible spongiform encephalopathies (TSEs), also known as prion diseases, [1] are a group of progressive, incurable, and fatal conditions that are associated with the prion hypothesis and affect the brain and nervous system of many animals, including humans, cattle, and sheep.
A zoonosis (/ z oʊ ˈ ɒ n ə s ɪ s, ˌ z oʊ ə ˈ n oʊ s ɪ s / ⓘ; [1] plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite, or prion) that can jump from a non-human vertebrate to a human. When humans infect non-humans, it is called reverse ...
Scrapie and other transmissible spongiform encephalopathies are caused by prions. [19] Prions were determined to be the infectious agent because transmission is difficult to prevent with heat, radiation and disinfectants, the agent does not evoke any detectable immune response, and it has a long incubation period of between 18 months and 5 years. [20]
Chronic wasting disease is a progressive, fatal prion disease that affects the brain, spinal cord and many other tissues of farmed and free-ranging deer, elk, and moose.
Now more than four years after the world was rocked by a pandemic, H5N1, or avian or bird flu, has exploded in bird and livestock populations, and at least one human case has been confirmed by ...
A prion / ˈ p r iː ɒ n / ⓘ is a misfolded protein that induces misfolding in normal variants of the same protein, leading to cellular death.Prions are responsible for prion diseases, known as transmissible spongiform encephalopathy (TSEs), which are fatal and transmissible neurodegenerative diseases affecting both humans and animals.
Prion diseases can be passed among humans in rare cases, such as through the transplant of corneas, blood transfusions, and via contaminated medical equipment.
Scrapie – fatal neurodegenerative disease in sheep, not transmissible to humans; Bovine spongiform encephalopathy (mad-cow disease) – fatal neurodegenerative disease in cows, which can be transmitted to humans by ingestion of brain, spinal, or digestive tract tissue of an infected cow; Kuru – TSE in humans, transmitted via funerary ...