The vaccine formula provided by Jingcheng also uses the extracts of the mutant plants. In addition, they also use special parts of several mutant animals and mutant insects. Although the effect of the formula is not good for Yucheng, they are brought to Li Yuan. A great inspiration. After further improvement of the formula, the vaccine produced by Yucheng now has a cure rate of 45% for ordinary people and a cure rate of 60% for those with abilities. The cure rate is already quite high.

With further research and a large number of clinical trials, Li Yuan and other researchers found that the cure rate of the vaccine is decreasing with the increase of the zombie level. For each level of the zombie, the cure rate of the vaccine will drop by 5% or even More, according to their data model, their upgraded vaccine is approaching zero when dealing with wounds caused by a level 6 zombie. At the same time, the infected zombie virus is very resistant to the vaccine, even if it is only bitten by the first-level fusion zombies, the vaccine has only half the effect of the cure, and the vaccine effect on the three-level fusion infected zombies. Approaching zero.

However, Wu Ye's perfect vaccine still has a 100% healing effect, and there is a chance to wake up. However, unfortunately, they have never been able to study two or three of them, and the alternatives they have found are always unsatisfactory.

After Li’s forced release of the vaccine formula, the hunter’s union of Yucheng hangs up the task of long-term acquisition of variant plants and mutant animals and mutant worms. Due to the generous rewards, many people are willing to take risks to the forests near the city. Look for mission targets on the periphery. The location of Yucheng is relatively good, and the surrounding area is very suitable for plant growth. Soon, most of the raw materials of the medicine are collected.

The part that can't be found is to let the caravans help to find out if there is any exchange between the settlements.

More than a month later, the upgraded version of the d-virus vaccine in Yucheng was successfully launched, and each vaccine was clearly priced at 3,500 transcrystals. If the injured person who has handled the resident's death in the course of treatment can not pay for it; the citizen of the second level or above is allowed to buy it; the third-class citizen can enjoy the 10% discount. The higher the citizen's level, the more the discount can be enjoyed. many.

The survivors of Yucheng are hard to question the civic hierarchy proposed by Wu Ye. After all, the real benefits are visible.

The 3,500 transcrystal/branch vaccine was sold to Yucheng at a price of 1500 transcrystals/support, and then sold to survivors by Yucheng. After all, Wu Ye is not a charity. He has invested a lot of money in the research institute and the raw materials produced by the samples and systems. He has been in a tight position. The credit system will inevitably accumulate a lot of funds, and the late collection will also pass through the financial system of Yucheng. He simply trades directly with Yucheng, and then Yucheng goes to trade with survivors and wins in multiple ways. The 1500 transcrystal/branch vaccine cuts the cost, and rewards Li Yuan and others, and he has a maximum of 300 crystals.

On the other side of the city, there is money to manage there, and the city owner promises that the deceased can not pay any fees, and the profit margin is very small. Therefore, Yucheng can only find ways to reduce the risk of death.

According to Li Yuan’s research, the sooner a vaccine is injured, the sooner the vaccine is injected, the higher the cure rate. The hunter with the money will buy one or two vaccines for the occasional needs, but the purchase of the vaccine in advance does not allow the purchase, but there is a special device on the vaccine syringe to monitor the death of the injector, if it dies, Immediate family members can request a refund based on the information on the deceased dna and the syringe.

Yucheng did not announce the cure rate of the upgraded vaccine. In fact, after Li’s vaccine formula was forced to be announced, many researchers in large and medium-sized settlements used the formula they provided as the mother, more or less Improvements have been made and the cure rate has been improved over the original formula.

The price of vaccines in different settlements is not the same. The price of vaccination in Yucheng is one of the most expensive ones, but the deceased does not need to pay any fees to greatly dispel everyone's dissatisfaction. In the eyes of ordinary people, the cure rate of vaccines is only one hundred and twenty percent. If they are calculated, they will actually earn money.

Such prices are unfair to survivors? It’s good luck to take a small life from the zombie’s mouth. What do you want?

The first batch of upgraded vaccines, Wu Ye directly traded a considerable amount. After the city put the vaccine into the hospital, it sold more than 2,000 yuan in just one week. Most of them are bought there just in case. It must be said that the pioneering action in Qingyi County allowed some of the hunters in Yucheng to get rich first, and accumulated some money in their hands.

Wu Ye worked hard for a year, and finally realized that he had his own ‘industrial enterprise’ in this plane, and at the same time he was able to bring him long-term and rich benefits. After the completion of the vaccine factory, the corners of the mouth were high and raised for a few days, and the small tail that could not be seen behind the buttocks almost went up to the sky.

The good mood did not last long, and a new situation appeared.

Some mutant worms also grow energy crystals. The color and size of the crystals are similar to those of the transcrystals, but the energy contained is only half of the crystals, and some are not even enough. The energy of these nucleus is the same for the abilities, but the energy content difference is so large that no one wants the nucleus.

After Wu Ye received the information, he went to the institute with Qin Wuhua to find Professor Li. After the chilling, he said the general situation again and asked: "Li Shu, can you help me to identify a nucleus energy content?" The tool comes out?"

Professor Li took the crystal of the mutant bug and looked at it for a while. He said, "I will try it first and give you a reply as soon as possible." The upgraded version of the brain has very good performance and can help Professor Li to model and analyze, saving a lot of things. Not enough information in the database, it can do more.

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Wu Ye nodded: "Yes, then you are busy first, and Daqin and I go to the plantation again."

This year's weather is very dry. The situation in Yucheng is still good. The groundwater resources are abundant. Not only are there no crops that die, but because the sunshine is higher than the previous foot, the growth of the plants is very good, and more crops are mutated.

After Wu Ye and Qin Wuhua turned a small circle in the plantation, they walked to the tree of life where Wu Ye’s heart and liver hurt, just like Ji Chong. He just showed his power to the tree of life. The state of the tree of life looks very good, and he has produced a lot of small flowers, but before it reaches adulthood, these flowers will not be the result.

After a simple chill, Ji Chong told Wu Ye: "...I found that the probability of crop variation near this tree is much higher than other places. Wu Shao, can you give me a bottom, what is going on in this tree? what?"

In addition to the fruit can be made into a variety of drugs, the tree of life itself contains pure and powerful vitality, which can promote the growth and variation of plants. It is for this reason that Wu Yecai gave him two packs of high-energy fertilizer. At present, the Institute is actively studying the high-energy fertilizers he provides. Many of the ingredients have never been seen before, and the progress is not great. It is not as fast as the wood abilities directly exert their abilities on it.

"Use it to give you more power every day, keep it tight, don't let it hurt and don't let it steal." There are thousands of survivors in and out of the plantation every day. In the season, there are more people coming in and out, and security issues must be taken seriously.

Ji Chong did not hear the long-awaited answer, and snorted: "That is still used by you."

As I spoke, the sky was abruptly dark, and the place where the sun fell from the sky, the black pressure was covering the sky, and a cloud of dark clouds that could not be seen was rapidly squirming in the direction of the city.

The system finally released the first mandatory task since this time: [The mutant bugs struck and guarded the city. 】

Wu Ye's face sank, and he used both sides to communicate with the system. He called Ji Xiang and let him immediately open the energy cover.

Two minutes later, a layer of translucent energy cover wraps the city.

Outside the city, a few hunters who had just returned from the hunting area saw that the sky was full of dense insects. The ear was the sound of their wings, and everyone was so scared that they changed sharply and rushed back at the fastest speed. city.

This time is already 7:30 in the evening. Due to the darkness of the night, the hunters will extend the working hours in order to kill more zombies. In order to cooperate with these hard hunters, the closing time of the city gates in the city will be closed. At half past eight, there were as many as tens of thousands of hunters outside the city. These people are desperately rushing to the city gate. The detection at the door is too late. There have been many conflicts at the door. If this continues, the hunters will be forced to forcibly. It is understandable to let these hunters come in, but they are afraid that those who have zombie virus infections or parasites in these people will be unimaginable once they are put in.

Wu Ye received an anxious report from Ji Xiang, and his brow was able to pinch the flies. Qin Wuhua heard it clearly. He frowned. "Aye, this will not work. Whether it is a conflict or the detention of these people outside the city is not conducive to the next action." The conflict will cause confusion. Keeping those people outside the city will also lead to confusion. These people will certainly not wait for death, and will inevitably attack the energy cover and cause unnecessary losses.

Wu Ye directly asked the system: [How long will those bugs arrive in Yucheng? 】

After the universe mercenary system is upgraded to a certain level, the function of auxiliary combat will be turned on. System monitoring is one of them, and system warning is another function. Wu Ye's exchange quota has already reached the level that can open the early warning function, but like monitoring, the warning also needs to consume points and energy. The single warning requires 1000 points and 6 red crystals.

After the system quotation, after agreeing to deduct the points and red crystals of the stupid host, the icy mechanical sound began to report the situation of the mutants: [10 million low-level insects, 40 kilometers away from Yucheng, expected to arrive in 30 minutes. In Yucheng, the tide of insects is very likely to detonate the corpse, please prepare the host for combat. 】

The author has something to say: It’s time to test the energy cover~~

First of all, I will give you a sneak peek. I have been afraid of codewords in the afternoon. The second one is very late. It is recommended to look at it tomorrow morning, what?~~~