Lu Tian's body is strong, and although the water will also be lost, the speed is very slow, and there is no need to replenish much water.

"Su Yan, you have a backpack, you wait to get some food and clothes, we won't come back."

"Mmmm, I have a backpack that I usually use for shopping, when are we leaving?"

Su Yan took a sip of water, feeling a little better in his stomach, and then looked at Lu Tian a little shyly, "Can you go out first?" ”

"Okay, I'll wait for you outside, let's leave in twenty-five minutes, you don't have too many things with you, so as not to affect your speed."

"yes, I know."

"I'll take this bottle back, and I'll use it again."

Putting the small bottle in the bag, Lu Tian came to a room where no one was there, and ate a little, although he was not tired, he needed to replenish his energy, otherwise if he continued to consume it, he would use up the energy stored in his body.

Lu Tian didn't touch the food in the bag, these were used as a cover-up, he took some chocolate, dried beef and biscuits from the ring, more than ten catties, just two cans of Red Bull, and ate it in less than ten minutes.

Throwing the bag into the trash can, washing his hands, Lu Tian took out his mobile phone and made a call.

Although there is a problem with the communication base station on the ground due to power outages and other reasons, the satellites in the sky have not been affected, and Lu Tian uses a satellite phone, so it can naturally call.

"Head, everything is fine here!"

"Well, then I'm relieved, remember that it's best not to leave the house, things outside are getting more and more dangerous! Also, try to save those villagers and relatives of mine and arrange them in tents, the infection situation in the countryside should not be so serious now. ”

"Yes, I see, head."

"Well, you go and do your thing!"

After Lu Tian hung up the phone, he dialed out again.

"Hey, Mom, you and Dad don't go out recently, it's dangerous outside."

"Son, where are you? I've heard them say it's full of zombies out there, so come back! ”

The mother's voice was full of worry, although she did not see the TV, but someone in the village saw it, saying that there was an outbreak of the virus outside, and many people had turned into zombies.

"Xiaotian, what are you doing outside, you haven't been home for more than a month."

The father was also beside him, and he took the phone and asked, his son didn't know what he was doing, and every time he went out, it was a few months.

"Dad, don't worry, you also know that what I do is more confidential, it's not good to tell you casually, I'll be back in a few days, okay? I'm safe now! ”

Lu Tian could only tell a lie, so as not to worry them.

"Okay, our neighbor said there is a temporary base in the city, should we go!"

"Don't go, don't care about them, they can go if they want, but you must stay at home, now the home is the safest, if you run to a crowded city, it will be dangerous, listen to my son, don't there be so much food at home, you just stay there, those friends of mine will protect you."

……

Lu Tian was still a little relieved to go home, so he called them, fortunately, he bought a few satellite phones at that time, and put a few at home, and now even if the communication on the ground is interrupted, it has not affected the communication satellites in space for the time being.

"Xiao Qi, do you have the vaccine formula for the L virus here?"

"Yes, and there are a lot, but master, you don't have the materials, even if you exchange it, Xiao Qi can't make it!"

"How much energy does it cost to redeem?"

This virus is so powerful, it is estimated that it is not cheap.

"Master, this virus has surpassed the current stage of civilization on the earth, and the primary L virus vaccine will cost 100 orange energy points, which can only solve the initial L virus, if the virus enters the mid-stage mutation stage, it will not have much effect!"

Sure enough, this virus is really against the sky, even if you have cheap channels, you still need so many energy points to exchange, so when the virus develops to the middle stage, it is estimated that the price of the vaccine will be more expensive.

"Master, you don't need to change, even if the virus develops to the peak, it is not so easy to infect you, the master's genes have been optimized twice, although this virus is powerful, it still does not pose much threat to the master."

Lu Tian was silent, he knew that he was not afraid of this virus, but he was worried that his relatives and friends would accidentally be infected with the virus, and when the time came, there would be an antidote, and he could save them.

"Xiao Qi, what kind of physical degree can block the infection of the virus?"

"According to Xiao Qi's simulation statistics, D-level physical bodies, such as Xuan-level ancient martial artists, at this time, the body's immunity will be raised by a notch, as long as too many viruses do not invade the body, the human body can automatically clean up, but if there are too many viruses, it still can't be stopped."

"From the D-level body to the B-level body, the immunity will continue to increase, and there will be more viruses that can be blocked.

After hearing this, Lu Tian asked, "What about the virus continuing to get stronger?" This virus will definitely evolve! ”

"This involves the growth of the virus, when the virus grows to the middle stage, the A-level body can barely resist it, and in the same way, if there are more viruses, it will not be able to resist."

"Because the A-level physical body is the limit of human beings on earth, if you want to continue to strengthen, you must open the limit of genes and carry out genetic optimization, when the first genetic optimization is carried out, the immunity of earthlings will break through the limit and continue to increase, and they will not be afraid of the virus in the middle stage; Similarly, if you are not afraid of the virus in the later stage at all, you must also carry out a second genetic optimization and break through to the SS-level body. ”

Lu Tian sighed, "It's a pity that it is too difficult to break through the physical body, and it can only be slowly driven by other cultivations, and the ancient martial artists who are born with the birth are only A-level physical bodies, and most of the supernatural abilities are even worse in physical bodies, and they have to go to the SS level to have A-level physical bodies, and only a few SSS-level supernatural abilities and S-level physical bodies can reach the level of genetic optimization." ”

"This is a common phenomenon in the universe, and it is difficult to break through the shackles of life, so the genetic optimization liquid is so expensive, and even most of the genetic optimization liquid has huge defects and some people still break the skull and scramble."

Lu Tian heard Xiao Qi talk about the genetic optimization liquid when he exchanged the strong body fluid before, and now he heard that the gene optimization liquid was defective, so he asked: "What are the defects of the gene optimization liquid?"

"In addition to the top gene optimization solution, the rest will exhaust the potential of the user, after using it, it will basically cut off the future, some inferior optimization solutions, there is a great risk, but even the worst gene optimization solution will sell at least 100,000 white energy points in the universe, and it is not something that can be bought if you want to."

"No wonder you didn't recommend genetic optimization solution to me, it turned out to be so expensive, probably more expensive than the vaccine!"

"No, it's still very cheap here in Xiaoqi, the cheapest thing is that the owner can directly exchange the formula, the formula is a hundred times more precious than the product, but here in Xiaoqi, it's also the price of a gene optimization solution, how about it, it's affordable!"

"It's affordable, but it's useless for the time being, wait for a while, an inferior one costs 10 orange energy points, and then change it when someone wants to use it!"

Now that almost 20 minutes have passed, Lu Tian thought that it would be better to get some healing medicine, he may not be injured by zombies outside, but may also be injured by other injuries.

"Xiao Qi get me some hemostatic medicine and medicine to relieve internal injuries, this thing may be used."

There are also some Western medicines in the ring, but Western medicine can't solve all the problems, so it's better to get some yourself.

"Master, considering the situation outside, let's use powder to stop bleeding, and use pills for internal injuries!"

"No problem, it doesn't cost many energy points, just get one!"

"Okay, exchange two prescriptions for a total of 3,000 white energy points, and it costs 2,000 white energy points to craft......"