On the way back, Long Jianqi's last words kept echoing in Chen Ziqing's mind.

"You and that zombie must find more virus origin structures within fifteen days, so that you can have a chance to survive."

Just then...

Dingling!

The sound of the phone receiving information suddenly rang out. Chen Ziqing blinked, put away his thoughts, and opened the screen of the phone.

"What kind of file is this?" he said in confusion, but pressed the finger movement to confirm the download but did not stop.

After the file is downloaded, the information will be opened automatically.

This is a virus data document that records the virus discovery process and historical changes in detail.

The virus subject was named Nirvana at that time when it was discovered. It was named Nirvana. It was resurrected from the dead and was Nirvana.

But completely beyond human expectations, Nirvana virus has differentiated and fiscated seven secondary virus branches since its resurrection, just like many characteristics of the virus found today.

As a last resort, the discoverer urgently refrigerated the Nirvana virus, and had to prevent it from further differentiating and fission.

And the seven differentiated and fissioned secondary virus branches were also processed in the same way.

The Nirvana virus was brought to the human world, but due to the uncertainty and terrible nature of the Nirvana virus, researchers had to start from the secondary virus branch.

According to the color and shape of the secondary virions branches, they named the black fog, white flowers, purple light, red leaves, gray snow, green plums, and the deep blue that is closest to the Nirvana virus body, and the names of the seven secondary virions branches.

The secondary virions branch is composed of several viral structures, the lowest is twelve and the most is 18.

Each virus structure will produce countless deadly viruses, just like the black tentacles in Chen Ziqing's body, which are derived from one of the structures of the black fog virus.

But even if it is just a derived virus, it maintains the magical ability to revive the cells from the dead. After this ability was revealed, it immediately attracted close attention from senior officials from all over the world.

Resurrection from the dead and life continues to continue. Isn’t this another form of immortality?

The senior officials quickly reached an agreement to jointly study the virus and seek the so-called immortality.

Since then, countless virus research laboratories have emerged in the deep mountains and forests around the world, in the deserted deserts and on the Gobi Deserts.

At first, all the experimental subjects used by laboratories to test viruses were nothing more than some animals such as pigs, hairs, dogs and rats. Gradually, the laboratories that made breakthroughs began to upgrade the experimental subjects. They started to think of primate monkeys and then focused their attention on the death row prisoners.

Research reports were summarized from various laboratories, and the researchers seemed to see the ultimate goal. They were extremely crazy and were doing virus experiments day and night.

...

Just when Chen Ziqing wanted to see the next page, the phone ringtone suddenly rang out, and the third page of virus information that he had just read was also replaced by the incoming call interface.

It was called by Long Jianqi!

Chen Ziqing didn't think much about it and answered the phone.

"Chen Ziqing, are you driving now?" Long Jianqi's voice sounded strange.

"Yes, I'm driving!" Chen Ziqing replied in a daze, why did the other party have time to care about whether he was driving at this moment?

"Just drive." He seemed to breathe a sigh of relief and said in lingering fear: "You didn't read the documents I just sent to you, did you?"

"I'm just about to look at the third page." Chen Ziqing replied honestly, "By the way, who wrote this information? I have such a big brain. Is there a virus in this world that can make people immortal?"

"Didn't you say you're driving?" Long Jianqi suddenly felt like he was being deceived.

"Yes, driving and watching are not in conflict. Just like now, I'm not driving while calling you."

"That's it...haha, actually, I think the author has a big brain." Long Jianqi laughed: "Don't take the documents I just gave you seriously, as they will harm the children."

"Oh." Chen Ziqing responded lightly, "Then can I tell others a story?"

"Whatever you want, I have to remind you, driving well and looking at your phone while driving is a very dangerous thing, okay?" Long Jianqi had no idea at all, and said something to the east and the west.

"This is also..." Chen Ziqing felt even more that the general manager was not from the Municipal Center for Disease Control and Prevention, but a madman released from a mental hospital. What a silly idiot?

"Hello, idiot." Chen Ziqing suddenly said in an interest.

"Fuck." The head of the CDC made a swear word.

He was furious and seemed to have forgotten to hang up the phone.

All I heard was a creepy conversation between superiors and subordinates.

"Reported that virus derivatives have been traced."

"Where?"

“Urban water plant.”

"Didn't the water plant be ordered to be closed?"

"It was someone who deliberately launched the virus..."

"Wait, why haven't my phone hung up yet?" Since then, I can't hear any sound.

That idiot must have sent the wrong document on purpose, and even this conversation was deliberately heard by Chen Ziqing.

Even though there was no reason to convince himself, Chen Ziqing inexplicably believed that this was not just his intuition.

Just imagine how a general manager of the CDC could have taken this position without having experienced many battles. In the face of epidemic diseases, he must have developed a careful and rigorous heart. That seemingly nonsensical documentary information may be true.

But what he couldn't understand was why the other party gave him the virus information in this way. Is this to reduce his vigilance so that he can quickly accept the virus's awareness?

Chen Ziqing, who couldn't figure it out in a lot of threads, simply opened the second document and information. This document and information made him feel as if he saw another world.

The first paragraph of the information contains an English letter, EDCBA, S, SS, SSS, X, Z. In front of the letters, there are two Chinese characters, grades.

The following text seems to be an explanation of rank and corresponding letters.

An infected person who has just been infected and completely deprived of his will of the virus is rated as early as E-level.

Those infected who have eaten more than three times after infection and have been completely deprived of their will by the virus will be evaluated as E-level mid-term.

Infected people who have stopped rotting and recovered initially after infection are rated as late-stage E-level.

Zombies whose infection lasts for more than one month, whose body is not rotting, and who awakens a skill ability will be evaluated at the early stage of level D.

...

Those who are infected with viruses, retain human consciousness and have zombie characteristics will be evaluated as E-level mid-term.

Those who are infected with viruses and retain human consciousness and retain human form shall be evaluated as late stage of E. If one ability awakens, it will be early stage of D.

...

Currently, the highest-level zombie is found to be S-level. The location of the discovery is an uninhabited island in the Pacific. The reason for appearing: it is suspected of looking for the deep blue virus and has been killed.

...

Levels above S are inferred from evolutionary theory data. Whether they exist can not be concluded for the time being.

After reading the document, Chen Ziqing couldn't calm down for a long time. He didn't expect that zombies would have a level difference. What he didn't expect was that a group of upper-class people standing at the top of the world had been secretly conducting experiments on the living dead for many years in order to pursue the so-called immortality.

If the virus is real, then it seems that eternal life has been a problem that humans cannot let go since eternity.

No one wants to die, even if it is natural birth, old age, sickness and death, it is no exception. People want to live for a long time.

After sighing in his heart for a while, Chen Ziqing put away his mood and said to himself: "If divided according to the level, I should be in the late E-level stage now, and the school beauty is in the mid-level stage of E-level stage."
Chapter completed!