Da Song a knife

Zhang Sijiu could only say one final word: "Even if there is no problem with the meat in the future, if there are wounds on your hands, you should try not to touch it. Many parasite eggs are invisible to the naked eye."

Skin is a natural barrier.

Once this barrier is crossed, many things can kill humans.

"Wash your hands more often and try not to rub your eyes." When he said this, Zhang Sijiu was thinking not only of parasites, but also of viruses.

I have never heard of any virus that can be transmitted directly through skin contact.

But the mucous membrane does not have such good protective capabilities.

Therefore, the respiratory tract, mouth, and eyes need to be protected and try not to come into contact with sources of pollution.

The woman nodded repeatedly and said fearfully: "I will never forget this time! If there is something wrong with the meat in the future, I won't dare to eat it, let alone dozens of kilograms, or hundreds of kilograms!"

She even thought, luckily it was her. What if it were her own man, son or daughter?

Zhang Sijiu told the woman a few more words to have a good rest, and then went to find the woman's husband.

After hearing Zhang Sijiu explain the reason, the man couldn't help but cursed: "This stupid bitch!"

But after cursing, his face was more sad, and he sighed: "It's because I don't have the ability, and my family is too poor, so that's why it's like this -"

Zhang Sijiu doesn't make any comments, but it can be seen that this couple must have a good relationship.

She only told the man to quickly call other people in the family to check and take pesticides, and then went to do other things.

There happened to be Zhang Sijiu's class the next day.

Zhang Sijiu talked about parasites - what to do if there are no specimens? It's simple. Go to the vegetable market and buy old chickens and ducks that are not fat enough. They might have worms.

Not to mention, one of the groups immediately revealed a surprise.

That chicken's intestines were full of worms.

The clumps are squirming like thin noodles——

A big man frightened the eunuch so much that he screamed, and then knocked over the chair, making a huge noise.

Zhang Sijiu was startled by the sudden scream and collision. When she saw the situation on the dissecting table, she smiled and congratulated the other party: "Not bad, not bad. You are very lucky. It was such a surprise to have the first chicken."

Everyone's scalp, which was already numb, suddenly became even more numb: What kind of surprise is this?

However, the first person scared them to death.

But as more and more people opened up "surprises", they all became numb in the end.

How can I put it this way, Sadako is scary, but if you watch her enough times, you can still tell that she has some delicate features?

When everyone reached this level, Zhang Sijiu told them about this case.

Finally, Zhang Sijiu concluded: "The woman this time was actually lucky. The bug was just under the skin. But think about it, what if it was somewhere else?"

At first, everyone thought that this incident was just enough to make people's scalp numb, but at least it was not life-threatening.

But when they heard Zhang Sijiu's words, everyone was startled as soon as they started thinking.

Someone said: "If it's in the brain, wouldn't it give me a headache? And there's no way to take it out -"

"If it's in the heart..." Someone shuddered: "I can't believe it could cause sudden death."

"Forget about the liver and lungs. At least these two places won't die immediately."    "What's more, what if it gets into the eyes?"

Everyone imagined the scene of "a bug crawling out of the eye socket", and then they all shuddered, and then the angry hammer said: "Can you stop saying such terrible things!"

Zhang Sijiu waited until everyone had calmed down, then corrected him: "If it goes to the brain, it just hurts? Impossible. This will cause edema of brain tissue, changes in brain pressure, and then trigger epilepsy. If a blood vessel is drilled, That’s a cerebral hemorrhage.”

"Similarly, if it is in any part of the body, even if it doesn't look so dangerous, it may cause massive bleeding due to blood vessel rupture."

"Even if they stay in one place all the time, if the number reaches a certain level, it will not just cause people to lose weight. I told you about blood-sucking worms, right? They can cause many diseases. In the end, people will still die."

"But these are not the most terrifying things. Do you know what is the most terrifying thing? It is that you have become an infected person, and your feces and blood may contain insect eggs. But you don't know, you are unknowingly The virus spread to family members, and then spread from one to ten, and from ten to a hundred——"

The classroom was quiet.

Zhang Sijiu sighed: "But if you go to the medical clinic, the doctor can't find out what disease you have, and they can't even prescribe a useful medicine. You can only live in pain and wait quietly for death. "

There was a solemn look on each of these students' faces.

Zhang Sijiu looked around and expressed that he was very satisfied, so he said seriously: "I often think that this is why we, as doctors, must study tirelessly. Because there are all kinds of strange diseases in the world, and many of them are not obvious even on the pulse. Come out. At this time, the only thing that can help us make a diagnosis is our own experience and knowledge."

"That's why I'm here to teach you."

"If I am too self-conscious and refuse to teach, then in the end, it will be difficult for doctors all over the world to go further - no matter how hard a person studies, summarizes, and understands, he can only reach a certain height. But if we are willing to teach each other experience and methods, then what will happen? What about? Or, this knowledge can be learned anywhere, so when you start studying medicine, you have already seen a lot, so you should consider more possibilities when making a diagnosis?"

"Students, I hope you will not be stingy in teaching others what you have learned in the future."

Zhang Sijiu collected the textbooks: "Okay, that's it for today. After class, remember to burn off all the parasites. When you get back, wash your hands with soap several times before doing anything else."

She is gone, but these students are all thoughtful.

Zhang Sijiu's words cannot be described as inspiring.

They had to think deeply, and then they were shocked, and then they developed their own determination and thought more about the future.

This is exactly what Zhang Sijiu wants.

It is meaningless to ask only based on behavior.

Only thoughts.

If thoughts change, all behaviors will change.

She is willing to be the light of the firefly. Even if the impact is small, it will have a slight impact.

Zhang Sijiu walked out of the classroom with brisk steps. The people left in this classroom slowly thought about it.

Well, what are you going to eat today? Anyway, as long as it’s not noodles, it’s fine!

Well, forget about chicken and pork. No wonder it's so easy to relate to.

Well, go vegetarian anyway. Cabbage and tofu keep you safe!

That’s it for today. I cut chili peppers last night and it was so hot that I didn’t dare to touch the keyboard all morning. My fingers felt like they were on fire as soon as I typed. It got better in the afternoon. Woohoo, remember to wear gloves when cutting peppers from now on!