New Mad Cow Test on the Horizon?

pin_gween writes "Prions are thought to be responsible for mad cow disease and its human variant, Creutzfeld-Jakob disease. Until now, the only way to positively ID those infected was to dissect the brain. Canada.com has an AP wire reporting that researchers at the University of Texas Medical Branch at Galveston have 'developed a method of multiplying the number prions in a blood sample so a blood test then can detect them.' If perfected, it would make the blood supply safer; transfusions can spread the disease between people. It could also open up more blood donations for the Red Cross: in the U.S., people who have spent more than 3 months total (since 1980) in the UK or 6 months total (since 1980) in Europe are banned from donating."

Comments

Blood test since 2003

[polysylabic psudonym]

According to New Scientist magazine there's been a blood test for BSE (Bovive Spongiform Encephalopathy(Mad Cow Disease)) since 2003. The more tests out there the better, of course. Better tests mean quicker testing, means more US cattle tested, means fewer cases hiding, means fewer cases of vCJD in american humans.

Re:Donation

[packeteer]

I don't want to scare you since you are probably fine but you very well could have prions in you. Temember there is no way to test and just becuase you have no symptoms doesn;t mean you dont have it. You can be exposed to the prions that cause VCJD and not get sick for 30-40 years.

I know someone who is not allowed to donate blood in the USA. He has never been to europe. His grandfather died of CJD and contracted it in the United States. Becuase there is a possability he carried it when he has children and his grandchildren COULD have it. There is no way to test them. The only way they will know is when they get older they could get sick.

Donation Bans: Poster is Wrong

[Kevin Nichols]

The poster is wrong in stating that anyone who has lived 6 months or more in Europe cannot give blood. It's not actually that strict. The full details are here: RC Donor Eligibility.

Re:Donation Bans: Poster is Wrong

[oneiros27]

It used to be. They've relaxed it recently. (I know, because I was trying to figure out why there was the ban, as I'm in the group banned, and freaked me out even more when the relaxed the rules, but I was still in the banned group.)

Here's the notice they've been sending out whenever we have a blood drive at work:

Effective March 1, 2005, the American Red Cross has significantly changed the restrictions for deferral of donors who have traveled to various parts of the world. Previously, the restrictions were 3 months total from 1980 to 1996 in the UK and 6 months total for the UK and Europe.

Now, the criteria is as follows for deferral:

Since January 1, 1980 through December 31, 1996-

• Spent a total time that adds up to 3 months or more in any country in the United Kingdom.
• Were a member of the U.S. military, a civilian military employee, or a dependent of a member of the US Military that spent a total of 6 months on or associated with a military base in any of the following areas during the specified time frames-
  • From 1980 through 1990-Belgium, the Netherlands (Holland), or Germany
  • From 1980 thorough 1996-Spain, Portugal, Turkey, Italy or Greece

Since January 1, 1980 to present-

Spent a total time that adds up to 5 years or more in Europe (includes time spent n the UK from 1980 through 1996 and time associated with the military bases in Europe as outlined above)

The rest of the deferral requirements remain the same.

From the research I did, there were suggestions that military folks were likely to visit the UK -- I couldn't find anything that suggested that have reason to believe that there was tainted meat on the bases.

Re:Mad Cow and CFD is a hype - it is safe.

[Grym]

"The facts are..."

"+1 interesting" as it may be, from that point on the parent was utterly wrong.

Some definitions: TSE is the general name of the TYPE of disease. Bovine Spongiform Encephalitis (BSE), or "Mad Cow's Disease", is the specific name of the disease as it appears in bovine, or cows. Creutzfeldt-Jakob (CJD) disease is the specific name of the disease at it appears in people.

Some common points of confusion:

• There are multiple forms of CJD, dependent upon how it is contracted
• cCJD, or Classical CJD is a genetic form
• In cCJD, YOUR BODY produces the malfolded protein (prion) which causes the disease. This is rare and ONLY manifests itself in the elderly (>55). It is a rare genetic defect (about 1:1 million) that causes this.
• nCJD (or sometimes nvCJD) is the acquired form of the disease. It can be acquired from contact with any infected bodily fluid and, of course, meat. It can affect anyone of any age.
• A person can get nCJD by contact with a cow with BSE OR a person with cCJD. This is why they aren't allowing blood transfusions of possibly infected people.
• All people are susceptible to the disease. It's simply a matter of contracting the disease. This is difficult to do if you: 1. Don't practice cannibalism (prevent contact to CJD) 2. Slaughter cows without coming into contact with the brain or spine (prevent contact to BSE) and 3. Prevent contact with an infected patient's spinal fluid (this really only applies to healthcare professionals, but it's fundamentally no different from #1)

-Grym

Re:I hope they don't expect a lot more donors

[Mccavity91k]

We do not reject people that have taken Tylenol, unless they're donating platelets (Tylenol, like asprin, is a blood thinner). As far as the drugs go, it is on a case by case basis because some drugs change your blood in many ways. As far as the Benadryl goes, the place I worked at would not have deferred you for that, as long as the allergies were chronic, and not possible a cold or flu.

Remember, this blood will go to sick or injured people that aren't in the right shape to have to worry about what drugs or viruses are in their bloodstreams, and how they'll react with what they're already on.