The county seat of Shezhou has not yet been infected, but compared with before, it is much more depressed, everyone closes the door and does not go out, and there are few pedestrians on the street. After Wang Haoran arrived, Cai Tingshi, who received the news in advance, had already arranged a vacant mansion for Wang Haoran to live in.

After waiting in Shezhou for nearly ten days, Wang Haoran finally waited for the cow that got cowpox.

"Cai Tingshi, do you think this cow's disease is very similar to acne?" Wang Haoran looked at the rotten sores on the cow's belly and asked, he had never seen smallpox with his own eyes, at most, he had inadvertently seen some pictures in later generations.

"It's very similar." Cai Tingshi was frightened by the acne and didn't dare to get too close to the cow, what if the cow's disease turned into a pox as soon as it was infected? It's just that the Tang Dynasty is not afraid, and he is not good at acting too afraid.

"That's good." Wang Haoran confessed, "Cai Tingshi, you will let people recruit some people now, there is no limit to men and women, the more the better." As for the remuneration, it is a thousand dollars a day for one person. ”

"Yes, the next official will go." Cai Tingshi responded happily, and then left in a hurry, I don't know if it was because he didn't dare to snub Wang Haoran's orders or wanted to stay away from this cow.

It's not easy to recruit people now, so Cai Tingshi has to send people to ask from door to door. In the end, there were quite a few people recruited, more than forty, and they were not all for money, but out of respect, and they were willing to serve Wang Haoran.

"Folks, acne is rampant here in Shezhou now, and I came to Shezhou this time because my tutor taught me how to defend against acne before. Today, I have gathered everyone here to extract some medicinal materials needed to prevent acne. Wang Haoran didn't hide anything from these people, after all, what he did would be unacceptable, "First of all, I promise that your fellow villagers will not have any danger to their lives, at most they will have a fever for a few days, and there will be no sequelae." ”

"First of all, I need to make a small cut on everyone's hand, and then rub it on the belly of this cow a few times."

The recruited villagers are all a little drumming in their hearts, the skin on the belly of the cow in front of them is erosive, and they are disgusting to look at, the famous young master wants them to be infected with the cow's virus!

Wang Haoran didn't explain anything more, anyway, he said everything that should be said, but he just put on a confident look.

"The grass people come first, the grass people can trust the little master." An old farmer stepped forward first.

Among ordinary people, Wang Haoran's title of little master is even louder, because miscellaneous rice is researched by the little young master.

Some people stood up first, others who hesitated behind the old farmers to express their willingness, and those who were worried about acne had no choice but to stand up.

Wang Haoran asked people to arrange several rooms in the house for these people to live temporarily, and if they don't want to live here, they can go home to live, but no one wants to go home, and they are worried that they will pass the disease on to their families.

The next day, these villagers had some dizziness and red spots on their hands. This is the most difficult time for these people, not because of how uncomfortable the disease is, but because of the fear of acne, and even the fear that they have acne. Therefore, Wang Haoran often came to see these people, and even ate at the same table, in order to stabilize the emotions of these people.

After a few more days, the red spots on these people's hands have formed pus, and their mental state has improved a lot, and it is time to start the next step. Wang Haoran had the pus from these people taken off and stored in small glass bottles, and kept in ice cubes, intending to send it to those who had not yet contracted the acne in the area where the acne broke out and the surrounding villages to apply it.

And of course he also has to plant cowpox, not to mention now, he has never planted cowpox in later generations, in case he is infected, losing his life is a small matter, and disfigurement is a big thing!

Zeng Chengyong saw that Wang Haoran took a knife and made a small cut in his hand, and said in surprise: "Little master, ...... are you?" ”

"You can also apply this pus to the wound to prevent acne."

"So you can prevent acne?" Zeng Chengyong said incredulously.

"It's a shame that you've been with me for so long, what's so strange about such a thing? I'm not going to make fun of myself, am I? Wang Haoran's words were said to Zeng Chengyong, and even more to others.

Zeng Chengyong naturally believed Wang Haoran, so he didn't say a word, he directly took out a dagger and scratched it on his hand, and smeared the pus on it according to Wang Haoran's practice.

"Little Master, do we still want to do this?" A farmer asked.

"Let's apply it too." Wang Haoran also didn't know if people who were infected with cowpox still needed to plant cowpox, and felt that it was more appropriate to plant cowpox.

Although Li Shimin did not implement the plan of isolation and extermination, isolation is inevitable, Wang Haoran also thinks so, and after the people are recognized and the whole people implement cowpox, those who have been infected and can survive will naturally no longer be ostracized.

The matter of letting the common people plant cowpox is not very smooth, and many people are resolutely unwilling to plant cowpox because of their rejection of this method. Wang Haoran can't sit idly by and ignore this, to eradicate smallpox, the only way to do it is to plant cowpox, and besides, he has to prove the feasibility of this method, so that Li Shimin will not use the isolation and eradication plan again. Therefore, when the fever was almost gone, Wang Haoran personally went to those villages to persuade them one by one, and even went into the acne-stricken areas a few days later to inspect the situation in person to prove the feasibility of planting cowpox.

Wang Haoran's personal practice made those stubborn people finally untie the knot, which made the cowpox matter go smoothly.

In the first few days, there were still many cases of new acne infections, and Wang Haoran also hung a heart, thinking about whether he had any missing links from time to time. Fortunately, in the next few days, the number of new cases plummeted, until nearly half a month after the cowpox was planted, the pox infection finally stopped.

Wang Haoran decided to go back to Chang'an, but he didn't go back directly, but stayed in Shezhou for another month before going back, so as not to avoid him from the people in Chang'an.

Back in Chang'an, Wang Haoran did not enter the palace immediately, who knows if Li Shimin will worry about whether Wang Haoran will come back with the pox virus in Shezhou? It's better to let Li Shimin decide for himself, if he doesn't worry about this, he will naturally summon Wang Haoran into the palace.

Li Shimin is still quite courageous, as soon as he heard that Wang Haoran was back, he issued an order to summon Wang Haoran into the palace, after all, Wang Haoran went to the hard-hit area and came out of the county seat in Shezhou for a month before coming back, and it has been more than two months since then.