At the onset of this disease, the patient will feel headache at first, then the whole person will inexplicably muscle spasm and dance, then the whole person will become paralyzed with dementia and incontinence, and finally the patient with this disease will die in constant laughter. It is because this disease is very strange that scientists began to study it. Scientists took a sample from the brain tissue of the deceased and injected it into the brains of their own chimpanzees.
At first, there was nothing unusual in chimpanzees, but after the third year of injection, chimpanzees began to walk unsteadily. In order to study the pathological changes of chimpanzees, scientists directly euthanize chimpanzees and then study their brains. After research, it was found that there were many plaques and holes in chimpanzee's brain. Later, scientists speculated that the disease was not a genetic disease, but a virus.
But if this disease is really an infectious disease, what is its mode of transmission? Later, scientists found that kuru disease only appeared among Farei people, and only women and children were sick. Moreover, the Peleg people also have a very shocking tribal culture, which is cannibalism. Of course, this cannibalism is not the kind of cannibalism that people remember. They just cut out the brains of their dead relatives and ate them. This is because the local people believe that the dead will bless the living offspring. And this custom is that only women can eat it. Some scientists believe that this situation is also caused by the local environment. Many resources are almost eaten by people, so they can only supplement their nutrition by eating people.
As for why children get sick, it's because many women secretly give their children brains, which makes them sick. But do you know that Fare people stopped this custom in the last century, but there are still many infected people? What's going on here? In fact, this is related to the incubation period of kuru disease, ranging from three years to decades. However, not all patients who eat the human brain will die, and there are some survivors, and these survivors are because there are some genes in the body that can resist the virus.
Since this gene is so magical, can it be extracted to benefit all mankind? Actually, it's not. In the whole world, most people have genes to resist kuru disease. But why is this gene so popular all over the world? Scientists say that in ancient times, maybe all ancestors ate people. At that time, there was no resistance gene and many people died. People with resistance genes survived, so they have survived to this day.