What Actually Caused Mad Cow Disease
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- Опубликовано: 26 сен 2024
- Do you remember the Mad Cow Disease scare from the 90s? What really happened? Did it go away? Join Stefan Chin for a mad new episode of SciShow and learn all about what really happened to those cows. Let's go!
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The odds of getting a Mad Cow Disease infected steak is... rare.
Master Therion Well done on your joke.
that makes me feel medium well
Go home
unlike so many other modern comedians, at least you don't work "blue." Eddie Murphy's "Raw" was infectious, though
Master Therion
Don't you mean extra rare.
Another thing not mentioned in the video that makes prions scary is that they're notoriously difficult to destroy. They can survive radiation, disinfectants and high temperature. Basically everything we normally do to disinfect food and food preparation surfaces does nothing to prions.
That's basically because prions aren't actually "Bacteria" or a virus... they're just proteins. Bad.... bad proteins.
And they have a 100% mortality rate meaning that they are the only infectiously spread disease that kills everyone it infects.
William Lesco and they can lie dormant for decades appearing in later stages of people's life which makes doctors misdiagnosis the disease as dementia at times. I'm POSITIVE there have been more than 230 deaths worldwide from CJD.
VienerSchnitzel Rabies does too, it has 100 per cent mortality ratio when synthoms show up (it's quite rare, and sorry if I wrote something wrong).
Mario Sánchez Nearly 100% but about 99.9%. About 8-10 people have survived it through the use of the Milwaukee Protocol.
I have unfortunately been learning about prion disease for the last 15 years. My family carries the genetic mutation for CJD (sometimes called fCJD because it's familial). If you have this genetic mutation your life proceeds as normal from birth and then something kickstart's the disease. My grandma was in her sixties, my mom was in her late 50s, and I had a cousin pass this summer in her early forties. Once you begin having symptoms there's nothing to do, no treatment, no help. You have weeks to months to live at that point. And every part of you that makes you, disappears. You start feeling dizzy and maybe have a slight hand tremor. The neurologist tells you you're crazy to think that it's cjd. Don't you know how rare it is? They've never had a single patient with cjd! It's much more likely an essential tremor. You have trouble remembering words, being able to speak your thoughts clearly. You lose the ability to walk and dementia starts. Pain comes when you're no longer able to move limbs like you could before and all your muscles lock up. And of course bladder and bowel control also goes pretty quickly. Towards the end you lose consciousness, only really waking when your body is turned to prevent bed sores or your catheter is checked and that's because of pain. And then when you're lucky you stop breathing.
If you carry the mutation for this disease, you will develop it at some point. And you have a 50% chance of passing this autosomally dominant mutation to your children. And you have to watch family member after family member go through the same thing. And the neurologist who didn't believe you before now sends you Christmas cards, every year. Because the thing you hate most about your family, he finds interesting.
And there is a stigma. Funeral homes don't really want your body. They suggest direct to cremation or a closed casket with no embalming. No one in your family, even those who test negative, can ever donate blood again or an organ. But of course you don't want anyone else to ever have to have this disease(not that they could get it from someone who tested negative), so why would you argue. And there's also this idea that you have something in your body that is both genetic and contagious. I used to tell the people at my work that if I fell and cracked my head open to just leave me be.
All because of a tiny misfolding Prion...
I would consider not having kids in this situation.
@@wayermane5069 ya but you feel heavened when you come to know that you already have 2 sets of twins
How u doing now?
@@moshariff6320 Life finds a way to continue. The realization that everybody dies actually brings comfort. Mostly because it means that you aren't that special, even with a rare genetic disease in your family.
The trauma does continue. We all had young families when we learned about fCJD and now those babies are on the cusp of adulthood. There is an invisible divide in our family, because we know the genetic status of the children of the family members who tested negative. You can't pass on an autosomal dominant mutation if you don't have it. Those kids and young adults are safe.
But the children of family members who carry the mutation will need to have hard conversations. We've never hidden this, but we have also never sat down and explained it in detail. They will need to decide if they want to be tested, if they want to have children, if they want to participate in research. They will have to figure out for themselves how to live with this.
So as a family we are celebrating 16th birthdays, first loves, and high school graduations with this hanging over our heads.
But life continues and for the most part, I am doing OK. Thanks for asking.
That's the part of the disease I have a hard time wrapping my brain around. The idea of a disease that is both genetic and contagious goes against everything I thought I knew about where diseases come from.
I have health anxiety and I've been struggling with the thought of having a prion disease. I've had muscle twitches, loss of appetite which are all symptoms of anxiety. But this video helped me put that aside and I've stopped worrying now that I know it's close to impossible to even have a prion disease in the U.S. It doesn't run in my family neither.
How’s your sleep?
@@somneang87time29 It's getting better, hopefully it stays that way.
How’s it going?
@@Etaoinshrdlu69 is this true
ive had something similar after a very traumatic event in my life. turns out it's just hypocondria, stress and anxiety.
Feeding dead cows to live cows is diasgusting. I spent time on some dairy farms and they would NEVER do that. I blame industrial, factory farms and their MBAs.
@Phoenixsaurus Rex In feed lots, where cattle are fattened for final sale, they are fed (salty) anchovies, so they will temporarily gain water weight.
I was actually thinking about this just the other day. All those major diseases all over the news every once in awhile seem to just vanish after a few years. When I was younger, Mad Cow seemed to be plastered everywhere and was a household name, but I realized the other day that I hadn't thought of it in at least a good 5-6 years now.
Micah Philson
Except cancer it's still here.
Anybody remember SARS? Bird flu? Swine flu?
Micah Philson media propaganda
we're talking more about "fad" diseases that just randomly become super popular on the news like mad cow disease, swine flu, ebola, zika etc.
Or they just don't affect the people with the money, ebola, malaria, zika and chikunguya are still an issue in several countries. Colera and Polio are still there and the news don't talk about tuberculosis as much as they should given that it is one of the most common infectious diseases in the world. BTW, there was a case of vCJD last year.
I studied this at uni and wrote a paper about it. Its a prion disease. The protein chains affected adopt a different tertiary folding structure. One in which the atoms actually take up less space than in the original thus leading to gaps and an overall spongey bulk material. Because this incorrect form is actually more energetically favorable it acts as a template or chaperone protein. nearby proteins of the same secondary polypeptide chain structure, naturally follow the influence of this new form and follow suit to adopt that same folded shape.The entropy of this interaction is wholly -ve meaning no effort is actually required to keep it going once its begun, so the change is spontaneous once infection occurs. Some of the first investigations into CJD were on a disease called Kuru. Tribes in papa new guinea had a tradition of eating the brain tissue of dead tribe members after their passing, but without cooking it. This lead to the incorrect, for our bodies needs anyway, but again energetically favorable structure getting into the body. Leading to degeneration. And killing alot of people. And BSE turned my dad vegetarian for about 15 years xD. Please Fact check me on this. I'm sure someone can spot an error here.
Dude - Comments like this are why I ever brave to scroll down - thank you.
Especially the part about how the reaction is sustained - you have filled me with thought food
Sooooo, literally a Domino effect, one part of the system lowers it's energy and everything follows.
Thank you for the info.
I'm probably wrong, but didn't some studies find a mutation in some of those tribe members that made them immune to Kuru?
It'd be good to mention the name of the protein, prion protein (PrP), as well as its extremely heavy concentration in the brain relative to the rest of the body. I also have to ask, your father had Classic CJD rather than vCJD correct. I'm thinking about writing a paper on it myself, the topic is fascinating with the various types of prion diseases and the incredible biochemistry behind how the mayhem is caused.
wait, dead cows were fed to other cows? that's like a chicken going to kfc
Joe Brown Cows are also fed chicken manure on a regular basis.
unlike cows chickens DO eat other chickens. But then again they are capable of eating and processing that meat unlike cows who are supposed to be herbivores.
Sitting on Ceilings ur digestive system can't handle of it
Cattle are capable of digesting meat, they're just much better at digesting plant matter.
Joe Brown refeeding livestock was pretty common until the Mad Cow issue popped up. There are multiple species the are effected by spongiform encephalopathy, scrapie is sheep, MCD in cows, Kuru and CJD in humans.
Im a 13 year old (probably way in over my head) researching prion disease and new youtube videos from good sources always help! Thanks Guys!!!
Dam
Happy 19th birthday
@@SinfulKitty Its actually October 15th lol, close tho
Anyone else here after hearing about the deers having a disease like this
Jacob Meier me
me
Me
Yup
Yea
so... changes in mooooood?
I'll go home now...
Andrew Knesse I
Mad Sheep Disease can also be really baaaaad.
Andrew Knesse please
Andrew Knesse you'll ho home THANK GOD
Andrew Knesse
The real concern is Mad Snail Disease
Too Slow🐌 lol
*⛵
You meant Mad Snail Disease, but I'll blame your typo on the ADD.
Sponge bob!
t.c.a.w Exposed Dang it I was going to say that
Surprised you didn't mention Kuru when talking about Prions and the whole lot of nastiness they cause, either way this was a good watch!
+ Final Marauder Then they would have to admit the root cause of Mad Cow Disease - when Indian subcontractors, hired to turn boatloads of frozen, dead cows into 'pet food', started buying local human corpses and bones by-the-pound, to grind up and resell as 'pet food'.
And Richard Rhodes (Pulitzer prize author) documentary book, the "BIG FEASTS" tells it the best.
@@interstellarsurfer riiiight cause I'm sure buying human corpses on the black market, turning them into food and selling it while hiding all of it was much cheaper than just buying animal meat lol
@@neuswoesje590 You're unfamiliar with the concept of padding the bill? Besides, a dead body is a liability - and animal feed an asset.
"Your steak is almost... definitely... probably... not infected"
*CLOSE ENOUGH I GUESS*
I had an elementary school teacher of mine who died of Kruetzfeld-Jakob a few years ago. She must have been infected when she was younger and it simply gestated in her body until it was activated and started killing her. When I researched to figure out what it did to the infected it made me feel sick honestly. She was such a sweet woman and from what her family had reported she had been reduced to an aggressive, angry person with no sense of what was going on around her. It's devastating.
Cows are herbivores, if you kept cows eating cow food this wouldn’t have happened
...cows and other herbivores will opportunistically eat small animals/scavenge carcasses. it's creepy as hell.
ruclips.net/video/qkQ7o-gWWng/видео.html
watch linked video at your own risk. contains footage of deer and cows eating live birds, etc.
even then this is why cannibal practices are unwise in any animal including humans. infact humans can get a similar effect like mad cow disease from being a cannibal but have no effect when eating any other animal.
it's not the cannibalism that is the issue. prion diseases are caused by consuming infected nervous tissue (brains/spinal cords). it can and does cross species. the mad cow outbreak was due largely to feeding infected sheep to cows. humans can get it from eating infected squirrel brains.
All the food is poison 🎶
New farming techniques? So not feeding dead cow brains to living cows is new? Who knew!?
wouldn't exactly call it 'a technique' either.
So gross I'm glad I dont eat meat
So inhumane to poor animals
Feeding dead cows to cows probably saved them money somewhere. Money is always the root of all evil.
What food contains all the ingredients that a cow needs to grow more meat cells? Cow meat. A cow can't digest a steak well, but if it's already powdered there's no problem.
Aside from transmitting disease.
The practice started in the 1950s if I remember rightly. The British government in this segment days had a mania for improved self sufficiency in food, given the German U-boats had nearly starved us out during the Second World War. So encouragement was given to anything that could get meat production moving more quickly was to be welcomed. For context, meat was still rationed in the early fifties in Britain. And people were getting pretty sick of it.
Steven Toerner It's more greed than money itself, but it's easy to see your point.
"The LOVE of money is the root of all evil."
@@TheBespectacledN00b pretty much all food was rationed in the early fifties in Britain, almost hard to believe.
As someone who works in blood banking thank you for mentioning it! A lot of people don't realize it can affect their ability to donate.
I haven't thought about mad cow disease in years! It was never really explained to us very well so I grew up scared that I'd die if I went near farm animals. I guess that's a good way of keeping kids from trespassing in farmers fields
Simply don't eat cow brains. Which apparently in the 90s was still a thing.
It still is.
yes because walking next to a fkn cow instantly transmits the disease... ppl don't trespass on farms, and sry if your dumb friends did back in school but more people just throw things in with the cows like poisoned meat or harmless trash. cow tipping is for people with no friends or money
Great video! I work in the industry where we prevent the bovine nervous system getting into food sources and I'm going to use this as my training intro video to why our job is important!
I still can't give blood because I was in England in 1982-1984. I wish I could again as I have a rare type and gave over 10 gallons before I was prohibited giving in the late 90s.
Am I the only one to never let go of my paranoia of this disease? The idea that it could slowly destroy your brain was and IS horrifying
Me too. I even stopped consuming beef
well if it is 100% deadly why worry.
I mean im scared of it sure, but also when I get the chance to talk about it I'm usually really excited
My preschool teacher had mad cow disease, she didn’t work in school for like 2-3 years, she forgot how to eat, how to move and how to be alive. She died in her mid 60’s.
😢
I worked for the Meat Hygiene Service from 1995 to 2000. BSE was a huge deal, the precautions were insane
I remember mad cows being a thing when I was younger... good to know it's mostly under control... prions diseases sound terrifying
There is a similar prion disease in humans called Kuru. Groups in Papua New Guinea that practiced cannibalism in funeral ceremonies cooked and ate most of the body including the brain. After the practice was discontinued new cases dropped dramatically but it still popped up for over 50 years from people who were infected before the practice was ended. The last official death from Kuru was in 2009 and the epidemic was declared over in 2012 with no verifiable cases since.
My great-grandpa died of Creutzfeldt Jakob. I'm pretty sure it was just the regular disease, not the variant, however. I don't remember what year he died, but it was before I was born, so almost certainly before the whole mad-cow thing.
Glad you touched on the blood donation angle for the U.S. Every single time the bloodmobile comes to town, I pop in and ask if I'm eligible yet. They *say* they're working on a screening test but I'm still not allowed to donate as I lived in Germany 1990-2002.
My mom also lived in Germany in the 90’s
She mentions the fact she can’t donate blood every time we see the blood truck
Another prion disease is Fatal familial insomnia (FFI) which is interesting and horrifying to read about if interested. Great video as usual.
I bet mad cow disease caused utter chaos.
Your comment is underrated.
You had one job.
You mean UDDER chaos? AHAHAHA
There is no phrase that makes me feel older than "if you were around in the 90s"
whyyy do they feed cows to cows?! wtfff
That my question. Companies are always after the easiest profit, but at what point do they realize a quite obvious line has been crossed.
how else do you make a Krusty Burger Squared?
It is called "Cowception"
Sitting on Ceilings In what sense is forcing bovines to participate in canabalism smart business? A species that is generally consider herbivores preferring vegetation..
They used to feed cows to cows as a way of recycling the raw protein back into the product as to not be wasteful. Actual bone and meat "meal" is off the market, but blood meal is still used in small quantities. This Blood meal is tested and proven to be safe before being added to the food. Essentially a pound of blood is a pound of protein. This makes it hard to just throw away.
--A trusted dairy farmer in mid Wisconsin area, who currently raises 400 organic cows.
In this Covid-19 reality, youtube just keeps recommending Sci Show disease videos.
They have that algorithm that varies what is recommended for you by what your watching, what other people are watching, and what they want you to watch. Like google and the politicians of their choice around election time or censor how good or bad a celebrity is
Cow 1 to cow 2: "Are you worried about mad cow disease?" Cow 2: "Why would I be? I'm a chicken!"
I'm really curious and fascinated by prion diseases and this epizode was especially usefull. Thanks a bunch and keep up the good work.
Best regards from a nerdfighter in Croatia !
I can die a happy man now. Hopefully not from vJCD! Worth every patron dollar!
This video actually sucks. Let me explain why facebook.com/rachel.nicole.16121/posts/101302537382411
I know someone who died from this in the 90's. I had no idea that it was so rare.
Search up the new Canadian brain disease sounds a lot like this disease
@@Student0Toucher yeah, i wont be surprised if zombies became real
@@whatname3676 Lay off the weed man. Moderation is key.
That is scary
My teachers passed away from this mid-year in second grade. It was sad, she was one of those teachers that everybody liked and was skilled at her job. :(
My husbands uncle, Larry Paisley, made several important discoveries about mad cow that impacted modern policy and stopped the spread. It was the highlight of his career, RIP uncle Larry.
1:58 Starting in early 1970's energy crises they decided to use less fuel when cooking the ground up remains of cattle( to feed other cattle) by boiling the material in a low pressure chamber.
My family lived in the UK for six months around 1998, and weren't allowed to give blood for a very long time. Fun to know more about why!
You shouldnt normally be allowed to ever give blood
My family friends that live down the street lost their dad to this disease. They think he picked it up during a deployment in Germany. It took about two months for him to completely deteriorate. It was really sad to watch him fade, and he had seemed really healthy up until that point.
It was a crazy fluke, really rare, but I hope someone finds a cure anyway.
Stefan Chin is a great presenter for the show - I liked his delivery of this episode.
Keep it up Stefan!
I read that the prions bind with plants very well. When the animal dies or sheds the prions the plants take it up, another animal eats the plants and the cycle begins again. I hope that is not correct.
Human madness also comes from eaten crushed human bones and muscles
The first cases in the UK were identified by Carol Richardson, a former colleague, at the Central Veterinary Laboratory at Weybridge in Surrey. The Scrapie idea is my favourite. I remember there being brain specimens in the freezers in the Pathology Department at CVL. I prepared slides there back in the 60s.
How do you know if a cow has mad cow disease?
It goes: "mmmmooooOOOOOOAAAAAAAAAHAHAHHAHAHHAHAH
I'll have you know that a proper evil laugh ends with a sudden onset of coughing, thank you.
I remember that... Now I feel so old...
No, it's says "vaccines cause autism"
Nice video I'm a government contracted scientist and my job is monitoring TSE in Ireland my lab actually developed the first detection method that made the eradication scheme possible, there was a positive this year in March and one the year before which was rather suspicious as it was a German animal that was recently bought at market, and Irish beer prices had only recovered to pre TSE levels.
Beef* lol stereotype autocorrect
My grandma died of mad cow disease in the late 80’s. I of course never met her, but my dad told me what she passed away from when I was 5 or 6 and it never left my brain. Such a huge fear of mine.
Same, I’m sorry for your loss.
I thought mad cow disease started with the Chemical Pour-ons most farmers were made to use by the governing meat bodies. One organic dairy farmer wasn't using the chemicles and his cattle tested negative for the disease after they were all slaughtered.....
He then went on to get a very good understanding of what these chemicles do to the spines and nervous systems of cattle and made a link between the two. I can't remember his name but his story stuck with me all these years, his determination to find out after losing all his lovely cattle....
VCJD = Van Claude Jean Damme
I moved to the US from the UK in 2001. I have not been able to give blood throughout that time.
The funny thing is that I am a vegetarian.
Duncan Ellis The disease can lie dormant for decades. Have you been a vegetarian all your life because if not, you probably ate tainted meat.
There are tests for BSE since 2005 and since 2016 we can detect all forms of BSE.
Irrelevant question but how was the move from the UK to the US?
Duncan Ellis My husband was born in the UK and only lived there until like 6 months old. Maybe never even ate any food yet. But he still can't give blood.
I once knew a girl in high school who also was from the U.S. and moved to the U.K. around the late 90s or early 00s and she also can't give blood, because she may have the disease.
I thought prion was pronounced like ion?
It's probably originally Greek or Latin. And English speakers always pronounce all foreign words wrong. You're free to choose which wrong version you want to use.
No no no there two very different things
Actually since it is a contraction or acronym of PROteinacious INfectious particle it should be spelled PROIN , but Prion rolls off the tongue better.
There was an article about this in DISCOVER magazine many many years ago: The Game of the Name is Fame ~ about how the prion theory was bad science being over sold.
cubs0110 potato patato
It is.
When I first heard about this back in sixth grade, 2006, I was so freaked out that I flat out refused to eat ANY beef for like a year after that. I still don't order burgers from McDonald's
The very thought that somwbody was feeding cows to cows is horrifying!
My mom was very worried after 1998. She didn't like beef in the first place, and we avoided eating any beef products for five years or so.
Hello, SciShow! Do you think you could make a video explaining the current knowledge of cerebral aneurysms? I had one rupture at 19 and after learning so much about them, I would love for a bigger audience to learn of them!
Question: Do paper toilet seat covers really do anything to protect the user from germs?
This video was truly... Wait for it...
Well done!!
I'll see myself out.
my grandmother actually passed away in 2016 from mad cow disease. i don't think it's as rare as this video makes it out to be. No one knows how she got it but like the video says it can take years to actually show symptoms. Her doctor said it could be from a botox injection she had or from some steak she had eaten in Mexico.. however my aunt has known 2 people that have passed in the last 3 years from it. which leads me to believe it's likely more common than we want it to be. still incredibly rare but not that rare.
This video made me one step closer to going vegan
Cosas Caseras you should, its better for the environments.
But what about the plant lives?
Take a step back away from it. They're lunatics I tell you.
Nobody cares. You won't be changing the world for the better if you do it, it will be just a indivudualist choice that will make you feel better at night.
@Victor 96: The same could be said about not raping.
I did an entire project on this last year in biology. It was very interesting!
they made it illegal to grind up dead cows and feed them to living cows
The thumbnail is a nice wink to the infamous Macromedia Flash applet 😜
My very close aunt passed away from this. It was absolutely the worst thing to see her go through, and it killed us to see how quickly it robbed her motor skills, memory, speech, and just literally everything 💔 😢
I’m so sorry for your loss
@@Elephant-Puppet thank you so much 😔
@@seal1237 that’s okay
My mom lived in Germany in the 90’s and she’s not allowed to donate blood
Just another reason to limit your meat consumption and lean to toward a veg diet. I see all the comments of people complaining about cows being fed to cows, but that wouldn't have happened without the INSANE demand for meat across industrialized nations. Think globally, act locally.
Speaking of insane, nobody in their right mind would feed meat to an herbivore except greedy humans.
What food contains all the ingredients that a cow needs to grow more meat cells? Cow meat. A cow can't digest a steak well, but if it's already powdered there's no problem.
Aside from transmitting disease.
lamewarrior Not so much greed as "Britian is fed up of meat rationing me the war has been over for years, and btw we probably shouldn't rely on imports so much in case we can't protect our convoys in the next war".
+lamewarrior Yeah and herbivores themselves who have been documented eating meat and other animal parts...
you... vegan
I never understood how prions could be transmitted through food. We cook our food, and also animal feed, which denatures proteins. Proteins are digested, which breaks them apart. Undigested proteins are not absorbed by the intestines. And finally, the few such proteins that could make it into the blood stream would have to get through the brain blood barrier to reach the brain itself. That's quite a gauntlet for those prions have to run and I'm amazed that any can manage to go through all of it.
The protein chains affected adopt a different tertiary folding structure. One in which the atoms actually take up less space than in the original thus leading to gaps and an overall spongey bulk material. Because this incorrect form is actually more energetically favorable it acts as a template or chaperone protein. nearby proteins of the same secondary polypeptide chain structure, naturally follow the influence of this new form and follow suit to adopt that same folded shape.The entropy of this interaction is wholly -ve meaning no effort is actually required to keep it going once its begun, so the change is spontaneous once infection occurs. Some of the first investigations into CJD were on a disease called Kuru. Tribes in papa new guinea had a tradition of eating the brain tissue of dead tribe members after their passing, but without cooking it. This lead to the incorrect, for our bodies needs anyway, but again energetically favorable structure getting into the body. Leading to degeneration. And killing alot of people.
Ahh nostalgia. I vividly recall my time as Chefs apprentice in the mid nineties in Denmark. My 'Masters' frustration was comic. "No bone broth, no marrow soup, no brains, no no no no" Incessant grumbling.
They were terribly disappointed with the farming industry.
I love SciShow.
I ate beef in the U.K. during the 90's. CJD has always been there at the back of my mind because it can take decades for the symptoms to appear. It's not something that keeps me up at night but every once in a while I can't help thinking about the possibility.
"Almost definitely probably not." Love it. Your honor, the jury finds the defendant almost definitely probably not guilty.
I remember this during the 90's, I was too scared to go to McDonald's
@Sorzin
If you really want to know more about "The Macdonalds" check in youtube the old ballade from Scotland "The massacre of Glencoe, by the corries"
Here the soup Campbells are massacring the Mc Donalds. Deserves them right.
Prion disease may not be so uncommon. Deer have a prion disease (wasting disease), and so do mink. There's another human prion disease - Kuru. And recent research even suggests Alzheimer's may involve 2 prions.
Thanks for sharing. Liked and appreciate your time.
You really belief the patties at your local burger place are pure ground beef? They grind all sorts of slaughter waste in there, including brains and other parts of the nervous systems
eSKAone they are now
SenpaiGaming
Whatever let's you sleep at night ;)
senpai is actually mostly correct. Ground meat lacks organ meat mainly because adding it would drastically change the flavor, texture, and feel of the meat. Ground meat is mostly made up of water, assorted plant mater for filling, and trimmings from chuck, sirloin, and round steaks. And in a study in 2008 that went through the ground beef of 8 different fast food chains, small traces of peripheral nerve tissue was found, but brain matter was no where to be seen.
Not brains, not in the UK anymore. Not if they want to be able to export to the EU. British beef sorts got banned for a number of years over BSE.
+eSKAone Yeah no, that's not how it flies, beef comes from shoulder and back meat, I can tell you having eaten quite a few animals if others part were haphazardly thrown in you would know.
Holy cow!
Here I am thinking cows go mad, when they eat tomacco
My life is a lie
If this video won't convince anyone to be vegetarian, then I honestly don't know what will.
CJD is the worst disease for anyone to ever go thru! I'm losing my uncle to it right now & it's heartbreaking.
I know this is an inappropriate question but has the topic of euthanasia come up? Because as you know CJD is 100% fatal
My first wife didn't need to worry about this - she was a mad cow already.
They sought psychiatric help for their anger issues and have calmed down. 😂
They were sent to anger management class.
I remember it in primary school in Ireland. We had to stand on mats with disinfectant before we went into the classrooms and everything.
I was making hamburgers yesterday and thought "I wonder what happened to mad cow disease?" then today this video popped into my feed! Mindblown! And thanks for answering that question!
Only 90s kids remember
I don't fortunately, as I'm not an older 90s kid (born 89)
I have a friend who drives a Prion, he's pretty douchey about it.
I was told mad cow disease occurred because in that ground up sheep and cow, they were also being fed cow brains. Since when humans eat human brains they can get a very similar disease called "kuru" which is also down to prions... I don't know if it's true but it stands to reason. I don't know if humans with kuru can pass it on by being eaten by other people though, I hope that remains to be tested.
@@AzathothTheGreat Right I thought it originated from a species eating it's own species brains, which I always was thought very bizarre and wondered why? But it seems that isn't the case... After looking it up it seems to be widely believed to have started after processed animal remains were fed to cows, those of sheep infected with scrapie, a closely related brain-wasting disease, lovely stuff.
After looking into Kuru, that was prevalent in the Fore tribe of Papua New Guinea were they ate the remains of the dead, women and children usually ate the brain and with the brain having a higher concentration on infectious prions the disease was therefore more prevalent in women and children. The same is thought with mad cow disease apparently brain tissue and spinal cord tissue have the highest concentration and apparently some burgers and sausages contain up to 20% brain tissue...
I do seem to recall some stories about "zombie deer" in america and it was getting quite bad in some places, I didn't realise it was it was a similar disease though although worse by the sounds of it, that's got to spread like wild fire.
They are all quite terrifying though, being their own bizarre classification of disease with such horrendous symptoms. I always remember being told about mad cow disease when I was a child, that it could take 10 years before you show symptoms, that somehow greatly added to the terror for me haha.
I hear you though, it definitely seems worthy of a donation.
Years ago I've read something even more disgusting about the possible cause (in addition to cows being fed remains of infected cows and sheeps).
For years the food pellets given to cows, that includes many products of animal origin, also included bones coming from the Indian subcontinent. It was supposed to be of animal origin but it also included human remains collected for instance on the banks of the Gange after funerary ceremonies.
Moreover, something like ten years ago, I watched a documentary about the Kuru disease in Papua Guinea, transmitted through ceremonial cannibalism of infected dead relatives. Some people got it very quickly, some decades later.
It suggest that the Creuzfeld-Jacobs cases might still explode. The ones who developped it in the 90s being genetically vulnerable to it and developped it quickly, but many others might still follow.
The big mad cow flare up was already 30 years ago, so I hope that it's just not the case.
The new deer zombie disease brought me here.
Lol same
The cows aren't mad
The cows are mildly irritated though.
"After cows die of BSE,they were ground up and fed to healthy cows..."
So, they really use(d?!) cow meat to feed cows?
Luke Skywalker got mad SeaCow disease by drinking that non-pasteurized green tiddy milk.
OMG, the early 90's???? I know I'm getting old but wow. I remember this happening and I remember not being able to find ground beef or steaks for like 6 months. They pulled all the meat out of the store when it was confirmed that a cow died of Mad Cow disease in the United States. If I remember correctly I think it was up in Seattle Washington. But whats tripping me out, it seems like it happened a lot sooner then the early 90's. I thought it was like 2000's. But to be honest I have not even thought about this in years. I'm glad that they got it under control, cause I love me some big thick Ribeyes. And also I remember them saying it was caused by them mixing cow crap in with their food. Just like pigs and how they get them to be so fat. They would have a 3 rack system. The top rack would get fed real food and the middle rack would only get half of what the top rack had. The bottom rack of pigs would be the fattest and the only thing that they ate was the poop from the top 2 racks. People are very mean and only care about one thing!! Money!!!! They don't care about how they treat these animals cause they are going to be slaughtered. I'm not a person that goes around and to fight animal rights like Peta. Peta goes overboard way to many times for me. When they called and told our president to not kill a fly with his hands and that there are more humain ways of doing it. That's was a joke in my eyes and a waste of the presidents time. President Obama was doing an interview on live TV and a fly had been bugging them. It landed on his pants and Obama slapped it and killing it. Then says ' Got the sucker '. It was awesome. Anyway I love animals and believe that what comes around goes around. You want to feed an animal that can't leave crap, well I hope that one day those people have to eat crap. Alsace out peeps.
While I’d heard of BSE aka Mad Cow before, I only recently learned of vCJD and different aspects. I have no issue being upfront that when politics enters a scientific situation, generally very little good comes out of it.
What I was horrified to learn was the extent to which ‘mechanically rendered meat’ products were served up to schools, military, and even programs like ‘Meals on wheels’. Obviously these products were a cheaper staple. Listening to surviving family members of those who died from this disease is horrifying enough but it sent me to level rage to hear ‘medical professionals’ intimidating the families to get them to stay silent to avoid panic. To look at a grieving parent and tell them they ‘need to stay silent, the media will make your life hell especially since you’re partially to blame for buying cheap meat’ should earn any professional a first class ticket to hell.
But the story doesn’t end there. You have people who donated blood during this time frame. You have people who, because they knew someone who died of vCJD they were denied medical procedures and surgeries because there’s no way to sterilize the medical equipment. But scariest still is I’ve not heard any true, scientific based evidence that can tell someone the products, medications and vaccinations that use bovine based ingredients weren’t tainted. How can Science sit here and tell anyone those vaccines or gelatin coated pills were free of these prions? Especially in a condition that can have incubation periods that stretch across decades?!
Go vegan
Oh look its Inabber ! Hiiii
So prions are proteins that can replicate by itself? Isn't this what DNA does? Couldn't prions the first perpetrators of life?
Doug sillig Thank you for taking your time to clarify my doubt.
Doug sillig question how exactly do they modify others ? do they do the action of changing normal ones or do the normal ones transform to be like them ?
As I understand it, proteins are just strands of amino acids folded in various ways (think various beads on a wire, with wire folded in different shapes). The shape of the protein can decide what it does. For example, a tube shaped protein can lodge itself in the outer layer of a cell and transport stuff in and out. Prion proteins are proteins folded in a "bad" way that causes other proteins of its same kind around it to also change their folded structure from the "good" one to the "bad" one, then they attach to each other and start to clump up. Eventually, they clump up into huge protein structures called amyloids, which then starts forming plaques in the nervous tissues. This leads to the "holes in the brain" thing, and starts causing all kinds of problems until the organism dies. Parkinson's disease, Huntington's disease, Alzheimer's disease, and amyotropic lateral sclerosis all happen about the same way.
Thanks, I'm studying biology, and this topic seems quite interesting. Where can you find deeper info about this?
WRONG, it's still here. They don't broadcast it. My father-in-law died of it. Head of neurology says they see cases each month. Where do you get your info?
There's also a genetic variant.
When I was younger I thought Mad Cow Disease was like a Zombie infection and it scared me so much.
There's a theory that Alzheimer is caused by prions too, but I don't know if this theory has been proven wrong or right. :0
Ove7T thanks for the information :) science is awesome
The symptoms seem almost identical to Alzheimers, just progressing much faster.
Ove7T FFI is the most terrifying condition I can think of, people eventually turn in to mindless husks. If they could still walk they would pretty much be zombies.
There's also a theory that a lot of vCJD cases in the elderly have been misdiagnosed as Alzheimer s...
lamb causes it
Feeding cattle ground up cattle...
...so im the only one thinking thats morbid? Ok
not to mention cows are herbivores
*Hmmmm*
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