On Sun, 28 Dec 2003 15:37:01 -0600, BubbaBob
Bubba_Bob@_remove_this_comcast.net said:Harry Demidavicius said:On 27 Dec 2003 18:16:27 GMT, [email hidden] wrote:
Quoted message said:Might save some grief, Stan, especially if the butcher knows where the animal came from, but
those nasty little prions may get past the kashering.
Harry
Prions get by anything short of a plasma torch, a nuclear detonation or about an hour in a reactor
core. They are released intact in the smoke when infected animals are burned.
When CJD patients are operated on, the medical instruments are melted down and then entombed in a
glass substrate before burial at a toxic waste site. Reusing them after any form of practical
disinfection has spread CJD to a lot of people who never ate infected beef.
Not quite.
Acquired CJD accounts for about 1% to 5% of all cases. 10% to 15% are hereditary. 80% to 85% are
what is known as "Sporadic CJD" and are caused by a random mutation.
BSE, or Bovine Spongifom Encephalopathy is referred to as vCJD or Variant Creutzfeld-Jacob Disease.
It is not exactly the same as CJD and the brain lesions more closely resemble those from a cow with
(BSE) than brain lesions from a human with CJD. CJD generally affects those between 50 and 70. vCJD
is usually seen in younger persons.
A person cannot contract CJD from "infected beef." Surgical instrument spread of CJD has been
minimal, even with the lengthy incubation period. . There have been a goodly number of cases traced
to corneal transplant, though and from use of human-derived growth hormone, and transplantation of
dura matter. Only a handful come from instrument contamination.
Both CJD and vCJD are caused by prions, which withstand standard sterilization procedures.
I have seen no recommendation of "glass substate" you mentioned for disposal of the contaminated
surgical instruments. Can you provide a citation? There is talk of a newer, enzyme based treatment
that dissolves the proteins and seems promising for investigation. You can read about it here:
newscientist.combse.jspOpen ↗
Boron