The sunlight gently patted Xu Wu's face, waking him up from his sleep.

Rubbing his eyes and yawning, Xu Wu jumped down from the tree and said to the sky, "Good morning!"

He didn't expect an answer, so he walked to the brook by himself, washed his hands, folded his hands, and put a handful of water on his face.

The icy stream dispelled all the discomfort of waking up in the morning, and Xu Wu felt refreshed.

I took off a few banana leaves that I tied around my waist, spread them on the ground as a carpet, and plucked some bananas from the banana tree again for breakfast.

Xu Wu sat on the banana leaves, looking at the flower fields that were gradually waking up under the sunrise, smelling the colorful fragrances, listening to the gentle birdsong, and then taking a bite of the soft and fragrant banana, he couldn't help but breathe a sigh of relief.

"These are the days. It would have been nice if there had been a pair of pants!"

Xu Wu looked at himself naked a little helplessly, although after a whole day, he was a little used to the feeling of emptiness, but it was not very comfortable after all.

Forget it, control the virus this time early, go back early, the quality of sleep last night was really poor.

"I'll take a look, and it's good that it's not spreading anymore. Phantom Moon, how many more animals died today?" Xu Wu asked as he bit a banana and asked Phantom Moon a little vaguely.

"As of now, the number of new deaths is 305 in the 24 hours now. ”

Xu Wu stopped eating breakfast and said with some regret: "Did you die so much? Is this really the flu? Why is it so pathogenic." ”

After all, Xu Wu still operated directly.

The first thing to do is to spread the vaccine, to the organisms that have not yet been infected in the epidemic area, and to spread the attenuated vaccine that he made by accident.

At the same time, he began to try the treatment he had conceived.

The first method is probably the least efficient.

He asked the Phantom Moon to collect the ingredients for the flu and then planted the vegetation near the infected creatures, allowing them to unconsciously eat the medicines. There should be some effects, but it is not known if these drugs for humans can work wonders in animals.

Come to think of it, they're all mammals, so they should be fine.

Forsythia, honeysuckle, ephedra, almond, indigo root, cotton, houttuynia cordata, rhubarb, patchouli, rhodiola rosea, peppermint, licorice, banxia, azure star, loquat, spiral, white mustard, white aconite......

A series of Chinese medicine names, speaking of which, many of them are probably not eaten by herbivores.

After messing around for a while, Xu Wu continued to try the second method.

Spread the second virus, a variant that emerged when Xu Wu was making the vaccine. The virulence does not diminish much, but there is a phenomenon of recombination with the original virus. After recombination, a terminator appears, which makes the replication of the virus problematic.

This coincidence has become a whimsical treatment plan for Xu Wu.

After spreading a second homologous virus, and after simultaneous infection, attempts are made to neutralize the replication process of the virus. Reduce the harm of the virus.

This treatment is known as fighting poison with poison.

It's just that Xu Wu is a little worried that the organisms that are infected with two viruses at the same time, if the cells in the body are not infected at the same time, this kind of coincidence will not be able to talk about, and naturally it will not achieve the purpose of treatment.

And more importantly, I don't know what exists on the island, and it seems that the genetic mutation is particularly powerful. The simpler the sequence and the fewer chromosomes there are, the more severe the variation.

If the second virus he invested mutates, it may cause his efforts to be wasted, or even have negative effects.

Give it a try on a small scale, and if it works, expand it.

As for the third method, it was derived from bats with zero symptoms. Although the bat colony was infected with the same virus, there were no deaths.

It is the biggest outlier on the island.

Why? Why are bats immune? Xu Wu relied on the research materials that Phantom Moon had found for him, and found some explanations.

Bats have a strong immune function and can kill viruses and bacteria at high speeds. Maintain a body temperature of 40°C for a long time, so that the immune system can maintain a highly strong state for a long time.

At the same time, bats have a good DNA repair system, which can not only repair genetic damage, but also inhibit the replication of viruses.

Body temperature can't be replicated, but can the DNA repair system be used as a reference?

If this repair mechanism is replicated in other organisms, can it also inhibit the virus?

Similarly, Xu Wu conducted experiments on a small scale, hoping to play a role.

But it was only when it really began, that Xu Wu realized how difficult it was to transplant the immune system of one creature from another creature to another.

The biggest problem is that the change in body temperature affects the reaction efficiency of enzymes, although the DNA repair system of bats is implanted into voles by means of genetic adjustment, it is found that it cannot prevent the replication of the virus very well.

And because it has not been adjusted, the whole system seems to be repaired according to the genetic sequence of the bat in many details, resulting in the confusion of the vole's own genetic replication, and many cells are already disordered when dividing, and then the new dividing cells are devoured by the immune system itself.

After many failures, Xu Wu found the exact cause and thought of a solution.

If the enzyme temperature is not adaptable, it is enough to change the core enzyme, and it is not only the bat that has a DNA repair system, but the problem is how to ensure that the original repair system that is stronger than that of other species is maintained while replacing the core enzyme.

Another problem, the details of the repair sequence, Xu Wu was prompted by the gene pool, and after comparison, it was easy to adjust it. Of course, a lot of the comparison work must have been handed over to the almighty Phantom Moon.

The search for core enzymes is not so easy.

First of all, it is necessary to find animals with a similar body temperature to voles, and secondly, to confirm the activity of core enzymes, and then to test the degree of compatibility with the bat DNA repair system.

Jerboas, squirrels, wild cats, three hippos, cheetahs, lions, gray wolves, baboons......

Keep trying, and keep failing.

Xu Wu realized that he must have fallen into some kind of misunderstanding, otherwise he couldn't have failed all the time.

He closed the adjustment interface, closed his eyes, and lay his whole body on the soft plantain leaves, emptying his brain, thinking about nothing, and discarding all his previous thoughts.

Every time he enters the solid area of thinking, he will try to make himself think of nothing, forget all the previous thoughts, and then re-examine the original problem, trying to find what he did not find before.

This habit has been cultivated for a long time.

After a long time, Xu Wu yawned and got up again, opened the map, found a new infected vole, and then ...... Why?

He suddenly realized that he had forgotten something clean.

I just woke up, and my brain was really blank. What did you want to do before? It seems that I was looking for a DNA shearing enzyme or a DNA polymerase for voles?

Why should I look for it? If there is no suitable direct mutation, can't it?

Yes, there is no suitable one, and it is impossible to find a suitable one, it is the epidemic prevention mechanism of different species, how can it be cut by him like this, and it can be used in bonding?

It's as if you pick up a leaf on the ground and find it in the shape of a blade of grass a thousand meters away. Is it possible?

It is only in the constant mutation that it is possible to be born.

Xu Wu opened his mouth and asked Phantom Moon, "Phantom Moon, is there a function on the island that actively improves biological mutation?"

Phantom Moon stopped what she was doing and explained to Xu Wu: "Yes, it's just that it hasn't been unlocked yet. If there are extinct creatures on the island, the mutation function will be unlocked. ”

"Extinct creatures? Do I say I can put in it? So, why not put in a saber-toothed tiger? Xu Wu said half-jokingly.

It's just that Phantom Moon looked at him like a fool and said, "Island Master, are you sure?, because the saber-toothed tiger has a serious genetic loss, and it needs to consume a lot of biomass if you put it in, and it is expected that after your operation, this epidemic will be difficult to control." ”

Xu Wu shook his head again and again, and said, "No, no, I'll find a way to unlock it in the future." If you want to control an epidemic, you still have to rely on vaccines. You just have to spend your resources on vaccines. ”

Phantom Moon said directly: "Island Master, have you forgotten something? Didn't I give you a pterodactyl before?

Phantom Moon's words made Xu Wu suddenly remember, when the virus invaded, it seemed that he had told him once. It's just that at that time, his heart was focused on the harm of the virus to the island creatures, and he didn't remember such a thing.

"Pterodactyl, I remember, pterosaurs eat fish, right, so I'll put it in... Well, here it is, where I came before, between the mountains and the swamp in the northeast, there is a river formed by mountain snow, and there are many fish and birds near the swamp, which can also meet its food needs. Xu Wu looked at the map, found an ideal location, and dropped one of the pterosaurs that the island game had given him into it.

Pterodactyl, said to be a dragon, is a flying lizard, a type of reptile whose diet is a variety of fish. I can fly, but I can't fly for a long time. Dropping it to a certain height should help it glide for takeoff.

As a small winged lizard landed on the island, Xu Wu received a hint from Phantom Moon: "Congratulations to the island owner, explain the biological mutation function, the genetic mutation function that can be used today." ”

"Biological mutation? Is there only genetic mutation now? In other words, there are other functions?" Xu Wu continued to use his sensibilities elsewhere.

Phantom Moon didn't hide it, waved her hand to reveal the operation interface, and said, "It's similar to the operation of genetic adjustment." What you see lit up now are the features that have been unlocked. The two options that are hidden on the right are the ones that can be unlocked later. ”

Xu Wu looked at the somewhat dim options, and subconsciously muttered out of his mouth: "Tracing back to the source? Directional mutation? What a strange name." I feel like I can guess what the function is. Ah, I'm looking forward to it. ”

Time spent in the process of Xu Wu looking for lunch and dinner, although all the treatment options he came up with basically did not have any effect, but with the gradual popularization of vaccines, the epidemic was gradually controlled.

While Xu Wu breathed a sigh of relief, he used the newly unlocked functions to try to experiment with his ideas!