In William's unwavering determination, the type II low-virulence virus vaccine was slowly inserted into his arm, and it was his fellow disciple who was responsible for recording the clinical response for him.

"Three minutes after I was injected with the type II low-virulence active vaccine, I felt my heart ......beat faster," William dictated his clinical feelings, a scene exactly as he had recorded with his teacher the other day.

"One hour after the injection of the type II low-virulence active vaccine, I felt a faint angina and poor ......"

"Three hours after I was injected with the type II low-virulence active vaccine, my body temperature rose slightly, but there was no violent reaction......"

"Six hours after the injection of the type II low-toxicity active vaccine, the persistent low-grade fever began to subside and I started to feel better......"

"12 hours after the injection of type II low-virulence active vaccine, the corresponding virus antibodies have been clearly found in the blood test, and the first clinical trial of type II low-virulence active vaccine has been declared successful!"

This risky vaccine experiment did not disappoint the researchers again! Most of the intrepid vaccinators in various countries survived, and only a few died because of complications caused by too strong a reaction to vaccination.

Even so, the success rate of this vaccine is close to 97%, and it can be rolled out on a large scale!

As soon as the vaccine was available, vaccine production lines in various countries began mass production.

Although only a few large countries have the ability to produce due to technical and equipment reasons, because this is the result of the joint efforts of global scientific researchers, the vaccines produced are shared globally, and the evenly distributed vaccines are continuously transported from the vaccine production bases of several large countries to various disaster-stricken areas.

In order to snatch the head from the Grim Reaper in a race against time, Ye Cheng directly sent his army of five million Zerg to act as couriers.

Each soldier began to deliver around the world with four incubators, one incubator could carry about 200 vaccines, and a single delivery could save 800 people.

Under the escort of the planetary-level Great Perfection Zerg warriors, it wouldn't take much time to transport even from one end of the Blue Star to the other.

In this way, this man-made virus disaster finally came to an end slowly under the concerted efforts of the Zerg and humans.

This virus disaster has swept more than ninety percent of the world's countries, and only some countries living abroad and closed off from other countries have not been affected too much.

With the strong virulence of this alien virus, this wave of virus natural disasters has killed nearly half of the world's population, and the most serious of them is the birthplace of the virus, the ranch of Yecheng.

The subjects of Yecheng have at least evaporated out of thin air in this wave of catastrophe.

And most of them are still some young people, because the middle-aged and elderly people go out less, and there is no difference between mild and severe diseases in the face of this 100% deadly virus, and if they are infected, they will die, so young people who love to go out and party are the first to be recruited.

Now that there is not much labor available in Ye Cheng's ranch, Ye Cheng's plan to build a super ranch has been inadvertently sabotaged by those high-level leaders of the Lighthouse Country.

"Forget it, it's just a population, this thing is like a leek cutting a stubble and growing a stubble, time has no meaning to me, recover for a few decades, and the number will go up!" Ye Cheng thought about it optimistically.

Although he became the lord of the ranch, he already owned most of the territory of North America and Hawaii, but Ye Cheng didn't want to be entangled in government affairs all day long.

Being an emperor doesn't have to bow down to everything, making good use of people, and military power is enough!

So Ye Cheng once again threw the matter to the dark one, just be the façade emperor himself, and he didn't want to care about government affairs at all.

A series of tasks such as post-disaster reconstruction, restoring people's livelihood and economy, and replanning the development direction of the farm Ye Cheng only gave a general direction, and the rest of the details were handled by his subordinates, and Ye Chengzhi was not here.