After anxiously waiting, after the Shangyuan Festival, the housekeeper finally came in from outside, the person was found, and the cow was also found, but the housekeeper was broken, and he didn't take care of it at home for many years.

In this way, Yang Heng also had to come out of the old lady's residence, because there were some things he needed to discuss with the housekeeper, someone in the Yang family had smallpox and needed soldiers to take care of their home, even a fly could not let it fly out, but if he heard that Yang Heng was experimenting with the smallpox of cattle in it to plant people, Li Er still didn't know how to be angry, the disease in front was not what they wanted to get, but it would be too much of a sin to take the initiative to study it, who knows if it can be done or not, what if it spreads in the whole city again?

Therefore, this matter should be arranged secretly, and no one should know about it, this is mainly because Yang Heng knows that this matter will definitely succeed, and it is just with the help of this incident that the matter will be solved at one time.

This can't be said that Yang Heng is bold, but that Yang Heng needs to take the opportunity to act, otherwise if he applys, Li Er will not necessarily approve it, even if it is approved, it will also make people panic, it is better to take this opportunity to do it, especially Sun Simiao can't get out if he comes in, and his house will be banned for a period of time, so Yang Heng might as well take the initiative to extend it, besides, there are a few patients with smallpox at home, and there is a maid's body that has not been disposed of, and now the weather is still cold, and the maid's body is not bad, In particular, the smallpox virus is still there.

After Yang Heng secretly discussed with the housekeeper, this can be said to be the biggest secret of the Yang family, that is, there is a communication channel between their home and the outside world, which is a thing used for emergency communication. It's just a copper pipe. Why did Yang Heng get smallpox in his father's house, and he didn't pass the word through this channel. Although this is a danger to life, it is not a danger of extermination, so naturally there is no need to spread the word like this.

And the test cowpox, then the Yang family is likely to be in the time of life and death, maybe it is not successful, that is, the few outside may not be able to survive, this is the reason why Yang Heng told the housekeeper before coming in that he wanted to use this channel to talk.

After Yang Heng talked to the housekeeper, a cowboy outside walked in with a cow that had been put on makeup and carried some things. In fact, most of the people who enter it are not blocked, and they are also people who are valued by Li Er, such as Yuzhang Xiaoniang and others, now such a cow boy, and a cow, naturally no one will stop it, just like that, a cow with smallpox, and a cowboy who has been infected with smallpox.

"Is this the cowboy you said had smallpox?" "No, no. I'm just talking about an observational phenomenon, how can it be that cow boy. Besides, how could the cow boy herd the cow so coincidentally have such a disease as smallpox? "This can't be admitted, otherwise how can the housekeeper need to look everywhere, and it will take a few months to find it, and now Yang Heng knows why the housekeeper came back at this time, it's not that the cow is not easy to find, but it happens to have smallpox, and the cowboy who has had smallpox is not easy to find, if you want to say how to find the cowboy, that is, to check whether the shepherd boy who herds the cow has a pox spot similar to smallpox, the housekeeper has found a few similar cowboys at a time, and this one is the most similar one, this matter, don't say that Yang Heng doesn't know, Even in the previous life, no one could recognize that the shepherd boy had been infected with smallpox by cattle and had become resistant to smallpox, which may only be seen by examination.

When Niu Tong led the cow in, Yang Heng and Sun Daochang quickly put into the new work, that is, Yang Heng needs to mobilize people to participate in the test, this is still a certain danger, naturally Sun Laodao will not let Yang Heng try it in person, but he wants to try it in person, then Yang Heng doesn't want Sun Laodao to test it in person, Yang Heng is a little undecided when Sun Laodao tells him.

However, this mobilization, Yang Heng did not bother much, because the father took the initiative to participate in the test himself, he was blaming himself for not helping much, this time there is such an opportunity, if he does not come forward, it is too unmanly, and the people, it is even more enthusiastic, and in the end, Yang Heng only chose a man, a woman, so the new cowpox personal test personnel were selected, that is, the father led the two subordinates to participate together, this time Yang Heng did not choose a child, or to start with the adult experiment, They are a little more resistant.

At this time, Yang Heng's little brother, as well as the nurse, basically recovered, although he added a pockmarked face, but his life was basically saved, and the care of them had been transferred to the hands of the old lady.

What is Sun Daochang doing, he is making pox vaccines, and there are two kinds of pox vaccines he makes, one is the wet pox vaccine directly taken from cowpox, and the other is the dried pox vaccine that has been made, and these two kinds of pox vaccines, Sun Daochang intends to use three methods to plant on the experimenter's body.

"Are you all ready? Grandpa, otherwise, won't you be able to participate in the next batch? Yang Heng is still a little uneasy about his father, this is also human nature, who wants to see their relatives in danger.

"No need kid, I'll do this for you, come on, I'll be the first to go." Daddy pulled his clothes and exposed his shoulders, "Come on Sun Daochang," "Don't be nervous, don't be nervous, just pull a small opening on your shoulder, relax, relax." While talking to his father, Sun Daochang did not have the needle in his hand to scratch his father's shoulder, and then put the dry pox vaccine on it, this is a method proposed by Yang Heng, but this needs to be directly fused with blood, which is much more dangerous, so Sun Daochang used a small amount of dried pox vaccine that has been made, but Yang Heng knows that even this pox vaccine looks like a lot, no matter how small it is, it is also a lot, you must know that the smallpox virus is very small and small, and it is not visible to the naked eye. So I don't know how many strains of the virus are in such a small dry pox vaccine.

"Okay, General Yang, you go to the room over there to rest, if you have any discomfort, you have to say it quickly," "Why, that's fine, why didn't I feel it." "Scratch it on the shoulder with a needle, that is, you can produce a few blood droplets, naturally it really doesn't feel anything for people like Dad, you must know that this time it is even lighter than a mosquito bite.

"That's it, if it's not Sun Daochang, you can cut it on the shoulder, what can such a scratch do." "Grandpa, you can go into the house, this is planting pox seedlings, not surgery, why do you need such a big opening." "Oh, okay, then I'm in." Daddy smiled awkwardly at Daochang Sun, and then entered the room.

Next, Sun Daochang blew the dry pox vaccine directly into the maid's nostrils, "You're fine, go into the house, also pay attention to the changes in your body, if you have any fever or other discomfort, you should say it in time." ”

In order to have a better effect, the wet pox vaccine is also a point of nostrils, in Yang Heng's opinion, this wet pox vaccine is the most dangerous existence, you must know that the strain in this wet pox vaccine is the most lively, but this does not feel that this is serious in the eyes of this subordinate, because one is a wound on the body, and the other is blown in, and what is the use of such a little.

"Xiao Langjun, can this be done, do you want to put more more, otherwise it won't work, won't it delay Xiao Langjun's business." Even this subordinate is very kind and wants to put more pox in his nostrils.

"No need, it's a lot, you go in, you also have to pay more attention, Xiaoyou, this tester will be handed over to me to be responsible, General Yang will be handed over to you to be responsible, and you have to take care of that maid more."

In Sun Daochang's heart, he is most concerned about this wet pox vaccine, he is not worried about those dry pox vaccines, thinking that the dry pox vaccine may not be active, what role can it play, in fact, he doesn't know, the future goal is these dry pox vaccines, this thing is the most convenient thing to store and transport, and it is more convenient to plant pox, isn't it. (To be continued......)