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Chronic wasting disease (CWD), sometimes called zombie deer disease, is a transmissible spongiform encephalopathy (TSE) affecting deer.TSEs are a family of diseases thought to be caused by misfolded proteins called prions and include similar diseases such as BSE (mad cow disease) in cattle, Creutzfeldt–Jakob disease (CJD) in humans, and scrapie in sheep. [2]
A member of this family is called a deer or a cervid. They are widespread throughout North and South America, Europe, and Asia, and are found in a wide variety of biomes. Cervids range in size from the 60 cm (24 in) long and 32 cm (13 in) tall pudú to the 3.4 m (11.2 ft) long and 3.4 m (11.2 ft) tall moose.
So-called “chronic wasting disease” (CWD)—colloquially referred to as “zombie deer disease,” a similar condition that affects cervids like deer, elk, reindeer, and moose—has been ...
Adults of P. tenuis can persist for many years in a single host, which allows for many first-stage larvae to be shed in feces. [1] [8] It is quite common in many populations of white-tailed deer, which have built up a strong resistance. [4] After gastropod ingestion, moose or other deer may be hosts of the second- and third-stage worms.
A Michigan man stunned the internet after sharing images of a "one-in-a-million" deer he found during a photography session. Steve Lindberg, a former state representative living in the state's ...
Deer with the peracute form of the disease may go into shock 8–36 hours after the onset of symptoms, and are found lying dead. [2] Death is also common in deer with acute EHD, which is generally comparable to peracute EHD and is characterized by excessive salivation, nasal discharge, and hemorrhaging of the skin. [ 4 ]
Thorold's deer (Cervus albirostris) [2] is a threatened species of deer found in the grassland, shrubland, and forest habitats, at high altitudes, of the eastern Tibetan Plateau, as well as some fragmented areas further north in central Western China. [3]
Dermacentor albipictus, the winter tick, is a species of hard tick that parasitizes many different mammal species in North America.It is commonly associated with cervid species such as elk (Cervus canadensis), white-tailed deer (Odocoileus virginianus), mule deer (O. hemionus) and caribou (Rangifer tarandus) but is primarily known as a serious pest of moose (Alces alces).