Because of the imminent fall of the whole of Africa, the World Health Organization also waved its hand and agreed to the clinical trial on Chen Chen's side without hesitation.

The so-called phase I and phase II here is the testing period of the vaccine, and generally speaking, a vaccine needs to undergo phase IV experiments from research and development to marketing.

The first phase of the trial, mainly to test the safety of the vaccine, can only enroll a few dozen people at most, these people will be observed for several months after being injected with the vaccine, and the second phase of the trial will be started only after confirming that the vaccine will not cause harm to the human body.

In other words, the first phase of the trial actually only tests whether it is harmful to people, and from the second phase onwards, it begins to test whether the vaccine is effective.

In the third and fourth phases, the number of people began to increase, and the observation time became longer and more rigorous.

It usually takes years to complete the entire clinical trial, and there are even many vaccines that have not been made for decades, but there is also a flexibility, such as the epidemic three years ago, it only took one year for the vaccine to be developed and marketed in various countries.

This is related to the global situation, the more tragic the virus is, the faster the vaccine will be developed.

After all, the number of infections and deaths in Africa is more than 100,000 every day, and it is not easy to come up with a vaccine, and it will take several years of clinical trials.

Therefore, in this critical period, the clinical trial of the vaccine must be fast, and the sooner the better, and even the World Health Organization has approved a special indicator to allow such vaccines to have a small part of the harm to the human body.

In other words, even if the vaccine researched by Chen Chen has some harm to the human body, it is acceptable, as long as it can stop this plague.

As the news of the development of the BE-006 vaccine in the Life Science City spread to the world, countless people's eyes began to focus on the Life Science City.

Under Chen Chen's appointment, Professor Bernhard is responsible for the operation of this clinical trial, and the entire Life Science City has stopped all experiments, and the resources of the entire city are serving this clinical trial.

However, Chen Chen is still very confident in the effect of the vaccine, after all, it is a product based on the research of the entire Hive Laboratory.

You must know that the umbrella company has been researching the progenitor virus for 30 years, and even researched the flowers, and the BE-006 virus and the progenitor virus are genetically similar, coupled with the scientific and technological level of the hive, there is almost no possibility of failure of this vaccine.

So, after Chen Chen threw the clinical trial project to Professor Bernhard, he returned to the spire laboratory and began to study the original progenitor virus.

"Ancestral viruses, but they have the power to evolve."

At this time, in the fourth-level biosafety laboratory of the Spire Experimental Base, Chen Chen held a blue test tube, revealing a thoughtful look, "But this evolution is more like a mutation. ”

As he spoke, he poured the liquid from the test tube into the human cell culture medium and observed it silently.

In this laboratory at this time, not only Chen Chen, but also the teams of Hannibal and Li Lei existed.

Around the laboratory, there are several very complex instruments and equipment, which do not match the style of other instruments, and are more like a product of science fiction.

These instruments were the equipment that Chen Chen had brought from the Resident Evil plane, and with these instruments, the biotechnology of the Spire Lab had been enhanced again.

It can even be said that at this time, the spire laboratory has surpassed the biological level of modern human civilization and reached a higher level......

"Mr. Chen."

After a while, Li Lei suddenly shouted, "Come and take a look." ”

Hearing this, Chen Chen walked to the electron microscope and looked towards the screen, but saw that the cells in the culture medium began to multiply rapidly, like bulging bubbles.

"The rate of proliferation has more than tripled from a coefficient of 1 to 3."

Li Lei faintly looked excited, "And every time the cell divides, the length of telomeres is barely reduced much, which is exactly the same as the description of the information you brought back, this virus really has the ability to enhance metabolism and prolong life!" ”

"Don't be too optimistic."

Chen Chen shook his head, not showing any excitement, "Don't forget, this is just a change in the most ideal environment of the petri dish, in fact, if it is not in the petri dish, but in the body of a normal person, I am afraid that this person is already bleeding like being infected with the Ebola virus at this time." ”

"Because of immune system problems?" Li Lei put away his smile when he heard this.

"That's right, there are symptoms of onset on the data."

Chen Chen called up the information on the screen and said, "The progenitor virus contains a superantigen toxin, if this virus really enters the human body, it will definitely attack the human immune system first, including lymphocytes, dendritic cells, and macrophages. ”

"And just like shown in the culture medium, after this virus infects the human body, it can increase the rate of human metabolism by three times the previous one, which also means that humans need to consume a lot of nutrients, and this consumption rate is not at all what humans can afford."

"So, the Ancestral Virus has great flaws and is not suitable for our experiments."

Li Lei nodded with some regret.

"However, compared to the original progenitor virus, its advanced product is different."

Chen Chen's words changed suddenly, he squinted his eyes and looked at the leech slice in the petri dish on the side, "If you can fuse some of the genetic fragments of the leech with the progenitor virus, you can get the famous T virus." ”

"Yes, the T-virus is better than the Archaeopteryx."

Hannibal walked over and added as he looked through the information, "The Ancestral Virus does have the ability to increase human strength and speed, and can even extend the life span of humans, but at the cost of a very low success rate. ”

"Just like BE-006, the survival rate of infection with the Ancestral Virus is less than 10%, and even if you are lucky enough to survive in the end, you may not be able to be changed by the Ancestral Virus, because the human body only produces antibodies and is immune to the damage of the virus."

"So the Archaeopteryx is actually not perfect, it has a huge flaw."

"But the T virus is different, an advanced version of this progenitor virus, which is different from the virulent virus BE-006, but a mild virus that lives in symbiosis for a long time by integrating its own genetic material into the chromosomes of the host cell."

"During this symbiosis, the host cell's genes are altered by the integration of viral chromosomes."

As he spoke, Hannibal raised his head, "In short, human beings will be genetically recombined after being infected with this virus. ”

Hearing this, Li Lei couldn't help frowning and said, "But, why did humans infected with the T virus, not only did they not evolve, but instead became zombies?" ”

"That's because of evolutionary failure."

Chen Chen replied, "If you want to cultivate organisms that can truly fit the T virus, you must start from the fertilized egg, which means that you must use the T virus to infect the fertilized egg, so that the fertilized egg can grow into a real enhanced life, and the consequence of directly infecting humans can only be the path of failure to evolve and become a zombie." ”

"Of course, there are exceptions to all this."

After thinking about it, Chen Chen added again, "Maybe one or two lucky people out of millions of people can withstand the invasion of the virus and become a superman like Alice......