Ye Cheng doesn't know much about these viruses, everything can only rely on them, whether they can save more human beings, and leave a seed for them depends on their ability.

After arranging everything, Ye Cheng left the experimental building.

Fly high into the sky to check your ranch territory, and the battle within the territory has begun to subside.

It's not that these subjects suddenly understand any big truth, it's purely because there are really not many people who can still jump out and buy for zero yuan now, even if they break into the store, take whatever they like, because the owner of the store has also fallen to the ground, so there are fewer fights to see on the street.

Ye Cheng didn't have any good ways to deal with this, who would have thought that those high-level leaders of the Lighthouse Country would be so frustrated, it was not enough for him to die, he had to pull the global human race on the road together.

When Yecheng was patrolling the territory, a group of scientific researchers in the building were in full swing using these black technology instruments to re-analyze the virus samples obtained.

"I see, I think I've found a shortcut that can suppress or even eliminate this virus!" After using these black technology instruments to comprehensively analyze the virus specimens, a respected old medical professor suddenly had a little inspiration.

The medical experts on the whole floor were in a shock, they had been studying for a few days and nights without these instruments, but they found nothing, after all, this is an alien virus that the Lighthouse Nation has studied for decades and has not found any famous extraterrestrial virus.

Unexpectedly, after using the research equipment given by the new lord, their research had a breakthrough in just half a day!

Although it is only a breakthrough idea, there is still some distance from the appearance of the finished vaccine, but it is much better than seeing no hope at all before!

After having hope, these scientific researchers, who had been studying the virus for several days, were also tired, and one by one they began to prepare for the attack according to the old professor's inspiration.

Box by box of black coffee powder was transported to the laboratory building, and every scientific researcher was burning everything for the survival of mankind.

This group of the most elite scientific researchers in the lighthouse country are using their lives to seek a way for mankind and the people......

In order to develop a vaccine faster, the dark one directly sent the latest breakthrough progress in the scientific research building to a temporary sharing group with scientific research institutions in various countries, hoping to work together to solve the natural disaster of the virus.

Like medical researchers in lighthouse countries, scientific research institutions around the world have also entered a state of burning life, sharing technology and resources, all in order to develop effective vaccines in a race against time.

After all, this virus is not a routine infectious disease, but a vicious alien virus, with a 100% lethality rate and an ultra-short incubation period, all of which are stirring the nerves of human beings.

At this time, if we can't get rid of our old suspicions and cooperate as one, then humanity will really perish.

Headed by the Lighthouse National Black Science and Technology Research Building, supplemented by scientific research institutions in major countries, after three days of sleepless work, the first experimental vaccine has been successfully developed.

"Teacher, this vaccine is only an experimental type, and it has not been clinically verified yet, and rash vaccination is likely to have serious consequences!" A young medical researcher persuades a middle-aged professor.

"William, it's too late, people are dying outside every minute and every second, if we can determine the feasibility of the vaccine one minute earlier, then we can save hundreds of people! I've made up my mind, don't persuade me anymore! After speaking, the Xia scientist resolutely injected a shot of vaccine into his arm.

"Teacher......" William looked worriedly at the professor with slightly frosty temples.

"Record the clinical response!" The old professor drank.

William didn't want the teacher's efforts to be in vain, so he quickly took out a pen and paper and began to record.

"Three minutes after the injection of the type I inactivated vaccine, I felt my heart beat faster and a faint twitching sensation in the muscles of my whole body......"

"One hour after the injection of the type I inactivated vaccine, I had a cramping sensation in my heart and a moderate throbbing sensation in my stomach and liver......"

"Three hours after the type I inactivated vaccine injection, my heartbeat started to weaken and my head was ...... Severe pain ......"

…………

"Six hours after the injection of type I inactivated vaccine, the vaccinated person had a strong clinical reaction, which was consistent with the clinical response of the infected person at the onset of the virus, and half an hour later, the vaccinated person was confirmed dead......"

The last record was no longer from the old professor's dictation, but was recorded by William in pain.

Type I inactivated vaccines have been developed, and all countries have the same intrepid people who have tried the drug, but the results are the same, only three hours longer than the life of ordinary infected people, and the final result is still a failure. For a time, the mood of scientific researchers in various countries fell to the bottom again.

Now that more than a quarter of the world's human population has been infected, time is running out for them! Will they be able to develop a proper vaccine before humanity dies out? This is a question that cannot be answered by medical giants.

After saying goodbye to his mentor, William once again packed up his mood and threw himself into the research and development of the vaccine, after all, this was his teacher's last wish before his death, and he must fulfill it!

After finding out that the inactivated vaccine type I did not work, researchers around the world quickly locked in the second way.

In the comprehensive information on the virus given by the Lighthouse Country, a scientist from the three countries of Afghanistan found a shortcut, and he announced the method on the sharing group a day ago.

However, this method was too risky, and the researchers at that time preferred the safer path of the old professor of the Lighthouse Country.

The result is also evident now.

After there was no choice, the path proposed by the scientists of the three countries became the last choice, and global scientific research institutions quickly began to launch a new round of tackling!

Compared with the safer inactivated vaccines, the three countries proposed a low-virulence active vaccine regimen with a higher risk factor.

If you think about how virulent the virus is, you can understand why previous researchers didn't choose this path. If it were a general virus, the Lighthouse Nation would definitely choose this method. But this time the virus is so virulent that even radical lighthouse researchers don't dare to take this path. The rest of the scientific research institutions of other countries are even more afraid to leave.

However, in the absence of a choice, everyone can only take risks.

After another two days of sleepless work, the trial version of the type II low-virulence active vaccine was successful again!

After the release of the new experimental vaccine, a large number of elite scientific researchers took the initiative to dedicate themselves and carried out another fearless clinical experiment.

This time, William also made up his mind to follow in the footsteps of his teacher and make a life for the people!

The type II low-virulence active vaccine slowly advanced into William's arm under William's determined eyes......