Become the city lord from today

Chapter 2668: Vaccination. (2 more please customize)

"Coughing. People who have smallpox do not have coughing symptoms. Will they continue to cough? Liu Feng continued to ask

"Not forever, I just coughed in the early stage, but after coughing for a while, I stopped coughing again."Elsa said

"Just cough for a while and stop coughing? According to what you said, it is most likely smallpox. Liu Feng said seriously.

Because the symptoms mentioned later are 100% smallpox. As for the cough symptoms in front, it may be due to different times or different regions. There may be a little difference.

"Mr. Liu Feng, what kind of disease is smallpox? Can this disease be cured? Elsa asked curiously.

What she wants to know most at this moment is whether this disease can be cured, and whether the people in the tribe can be saved?

"It is a very powerful infectious disease and is the largest virus to treat disease in the human body."Liu Feng explained.

Even if patients infected with smallpox on the earth are lucky enough to be cured, they may also be blind due to corneal ulcers, and most of them will leave skin scars.

This scar is what Lion Ear Girl I was talking about. A kind of scar caused by scabs falling off after the suppuration.

This scar is really ugly, and this scar is simply irreversible in this era.

There are also early symptoms of smallpox virus infection including high fever, fatigue, headache and back pain. It hurts, and there will be a typical smallpox rash.

These rashes are obviously distributed on the face, arms, and legs, but there is no cough, so Liu Feng was not sure at first. A few days after the rash appeared, the rash began to suppurate, After two weeks, scabies will begin to form, and over the next three to four weeks, scabies will develop.

"A very long infectious disease? No wonder there were only a few people at the beginning, and then there were more and more people."Elsa suddenly understood.

Now her mystery is finally solved. What she thought was going on at first turns out to be an infectious disease.

"So try not to come into contact with these smallpox patients, otherwise you will also be infected.."Liu Feng warned.

Elsa shook her head and said,"It's okay, I've been staying in the tent and haven't gone out, but I want to know if this disease can be cured?"

"Most people recover from this disease, but the mortality rate is also high. Liu Feng said seriously.

On Earth, most smallpox patients will recover, and death often occurs within one to two weeks after onset. The mortality rate is 30%, and the smallpox virus reproduces very quickly. It spreads quickly through the air.

People in the Sahara didn't pay attention to protection at all, and everyone didn't have a mask, so the speed of spread was very scary.

"I already know that the mortality rate is high. Many people in the tribe have died. I just want to know how to save them."Elsa sighed.

"There is indeed a way to save it, but it is more troublesome."Liu Feng said.

Elsa's golden eyes immediately opened and she asked,"Is there anything you can do to save them, Mr. Liu Feng?"

When I heard that there was a way to save me, I became happy. I thought to myself that Chang'an City had a way.

"That is to vaccinate against cowpox. Vaccination is the most effective way. Liu Feng said.

On the other side of the ancient Chinese side of the earth, someone invented vaccination, which was to take the acne scabs of smallpox patients.

Then use cotton dipped in it and stuff it into the nostrils of a healthy person. This healthy person will be infected with some mild forms of smallpox. Symptoms, but you will never get smallpox from now on. This process is called"vaccination".

But unfortunately, for a long time after that, vaccination did not develop further.

Because acne scabs come from humans, their use is limited. It was not until another person invented"vaccination" that this ancient"vaccination technique" became popular.

That person lived in the countryside, and then observed an interesting phenomenon. Anyone who works with farm animals , most of them did not suffer from smallpox.

And those milkmaids had never contracted smallpox, which both surprised and puzzled the man.

The man was determined to solve this mystery. After careful observation, he found that the milkmaids , it’s not that they have never been infected with cowpox, but the symptoms are very mild. They just have one or two blisters on their hands, and sometimes they don’t even know it. That person wonders if they are not infected with smallpox and they have been infected with cowpox. Is it related?

The man has been observing for many years, especially after the Chinese vaccination technique was introduced to Europe, which inspired him a lot.

The man finally decided that his idea was correct. He believed that milkmaids had suffered from cowpox. It can enable them to acquire a kind of resistance, which can protect these milkmaids from the attack of smallpox.

So he decided to do an experiment to verify his conjecture. He obtained a sample from a milkmaid who was suffering from cowpox disease. The pox pulp from some blisters was removed and then injected into a little boy who had never had cowpox or smallpox before.

After two days, the boy felt a little uncomfortable, but he soon recovered. Months later, the man was convinced that the boy's resistance had been built up. The current task was to experimentally prove that the boy was resistant to smallpox. He took some pus from the acne scabs of the patient who was suffering from smallpox and injected it into the boy.

A week passed, and the boy did not contract smallpox. A month passed, and the boy was still safe and sound.

The man's hanging heart was finally relieved. Yes, that man succeeded. He successfully developed a vaccine to prevent smallpox.

".丄Vaccinate against cowpox? what is this? Elsa asked in confusion.

She was thinking about vaccination with cowpox. Is it something from cows? This is too strange.

"Vaccination with cowpox can only save those who have not contracted smallpox. As for those who have contracted smallpox before, it can only depend on their luck (Zhao's is good) whether they can survive is entirely up to them. Liu Feng said.

There is currently no method that is effective against smallpox virus. All we can do now is prevention.

"That's better than nothing, and since it can keep people who haven't had the disease safe, that's good too."Elsa said.

The Lion-Eared Girl doesn't have too many expectations at this moment. As long as the remaining people can save their lives, that's good.

"Well, in that case, let’s start getting vaccinated against cowpox. Liu Feng nodded and said

"What do I need to do?"Elsa stood up seriously.

She couldn't help before, but now that she heard that there is a way to save the tribe, of course she hopes that she can also help.

"You need to find people who have cowpox and try it on you. Liu Feng said

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