Director Wang nodded, "Yes! That's a bit of a hassle to explain, huh! Let's put it this way! When we humans are infected by a virus, the body's immune system forms a protective mechanism to destroy the invading virus.

In the same way, you can think of the earth as a huge life form, and these zombie viruses are equivalent to invaders, and when the earth broke out of this virus, it activated the self-protection mechanism, that is, the fog a few months ago, to suppress the outbreak of the virus, but unfortunately the TX virus finally broke out. ”

Hearing Director Wang's popular explanation, Shen Chen and the others realized that the fog was actually created to stop the virus.

"Director Wang, according to you, this TX virus is not produced on the earth, but is foreign?"

"Captain Shen, you're right, this virus is a product that doesn't belong to the earth."

"That Wang, director! Can you explain to us how this virus came about? And why can people become zombie-like monsters? ”

Director Wang glanced at the three of them,

"I guess you remember the meteorite fall that happened a few months ago!"

"Know! At that time, it was said on the news that meteorites had fallen all over the world, and it caused a lot of panic. Suddenly, Shen Chen thought of something and asked with a look of disbelief: "Could it be that the virus is related to meteorites?" ”

Director Wang nodded.

"Yes, the news you see is only for governments to show to ordinary people, in fact, there was a crisis of extinction of humanity on Earth a few months ago."

"What?" The three of them were a little surprised.

"I also found out after the fact, just a few months ago, an asteroid came straight to Earth, and its size was large enough to destroy all life on Earth, and the United Nations decided to use the power of various countries to intercept this asteroid with all its might."

"No wonder the country announced space cooperation with many countries before." Shen Chen thought of the news that countries suddenly announced aerospace cooperation half a year ago, and his heart suddenly changed.

"At that time, countries successfully smashed the asteroid with a nuclear bomb, but there were still a small number of debris towards the earth, most of which were intercepted by the moon, and only a few smaller pieces of debris entered the earth's atmosphere, and the burning of the atmosphere did not have much impact on the earth.

But just a few hours later, a group of our experts in virology was called up by the state.

It turned out that when the meteorites fell and burned, a large amount of unknown gases were released from these meteorites, and these gases quickly merged into the atmosphere.

This is the native form of the TX virus, and after a series of studies, we found that these gases do not have much effect on humans, and this matter was suppressed.

But I didn't expect this to happen after only a few months. ”

"Hey!" Speaking of this, Director Wang let out a deep sigh.

"Why is this happening?" Shen Chen asked.

"According to our subsequent research, we have come up with an argument that after the eruption of the Tonga volcano not long ago, there were some changes in the earth's atmosphere, which led to the mutation of the TX virus, and after a period of incubation, the complete mutation was completed, resulting in a zombie virus outbreak."

"So how did zombies come to be, and how did they evolve?"

"We've looked at that. The reason why people mutate into zombies is related to the prions in our body, we found that after the TX virus enters the human body, it will quickly combine with the virus, so as to quickly destroy the central nervous system of the person, but at the same time, the TX virus will release a large number of unknown substances to preserve the vitality of the body! As a result, humans become zombie-like monsters.

The formation of prion poison, according to the speculation of some experts, should be formed by human cannibalism, this kind of poison will exist in the human gene chain, there is no place to go, and there are many human cannibalism phenomena in human history, which also leads to the existence of prions in our modern genes, the only difference is that some people have more and some people have less, which is why some people do not become zombies. Because they don't have a lot of prions in their bodies to house the TX virus.

The reason why people who are scratched and bitten by zombies will be infected is because the TX virus at this time already has prions as a carrier, as long as there is enough energy, they can replicate infinitely, until they reach a certain amount, they will explode in the host's body.

The reason why zombies can survive and evolve is because there is a substance in the stomach of zombies that is converted from the TX virus, which digests meat to provide energy for the TX virus, and the digestion speed is extremely fast, and if the meat contains prions, it will provide a large number of vectors for the TX virus.

That's why zombies are in hot pursuit of humans, it's just their instinctive hunting. If a normal zombie is not replenished with meat, then they will also die a natural death when they have exhausted the prions in the host's body.

But as long as they eat even one bite of meat, they can keep the action going for more than a year, and the more meat they eat. The more the TX virus in the body will divide, and the accumulation of the virus in a certain number in the corpse will make a qualitative leap in the host itself, that is, the mutation it makes. ”

Hearing this, Shen Chen obviously felt that Director Wang's whole person became excited.

"You know what? In fact, the zombie species is a kind of evolution of human beings in a strict sense, and you may have also discovered that human beings who become zombies are a grade higher than normal humans in terms of strength and physical fitness.

Not to mention the evolved zombies, their physical fitness completely surpasses the scope of humans, but it's a pity that the price of this evolution is to become a brainless killing machine, which is a pity. ”

Speaking of this, Director Wang stood in the original and sighed.

"I'll go! Shen Chen, you said that this old man won't be lowing his brain! Xue Yang leaned into Shen Chen's ear and whispered.

"I don't know, I haven't dealt with scientists, who knows what's going on in their heads."

"Do you feel like it's getting harder to breathe?" Li Bing leaned over and said.

"Are you too? I thought I was the only one who felt this way! Xue Yang looked at him and said.

"Me too, I've felt weak since just now." Shen Chen gasped and said.

"That Director Wang, have you forgotten to turn on the ventilation here, why is it getting more and more difficult to breathe?" Finally, Director Wang, who Xue Yang couldn't help but sigh, shouted.

"How come, we've been on it for twenty-four hours, otherwise we wouldn't have suffocated to death a long time ago, wait!"

Director Wang looked at the three of them and suddenly found something, walked over to a few people to check the status of several people, and suddenly turned pale.