It's pretty scary.

From a medical point of view, whether or not you have typical symptoms and whether you will infect others are completely different concepts.

The incubation period is contagious, which means that in the initial stage, people avoid people with fever and cough, but may ignore those who appear normal. Many people continue to eat, shop, and party with friends, taking it for granted that no one should be safe without symptoms.

This invisibly provides an opportunity for it to spread further.

It is also contagious during the incubation period, and not being exposed to a confirmed case is not safe, because we cannot tell with the naked eye who is infected.

The most effective way to prevent this is not to go out.

"How many people are infected now?" Meng Xi asked.

Professor Chan reported two figures.

Meng Xi knew how serious the development had become, and the number of people was much larger than the number he saw on the Internet.

Professor Chen hasn't slept well these days, and his dark circles are very thick.

It is highly contagious and spreads quickly, even if the medical treatment is advanced, once the number of infected people expands, it will not be cured at all, and a patient can be cured through advanced medical treatment, but the medical system cannot bear tens of thousands of people at the same time.

Meng Xi Zhengse said: "Teacher, some things can be spit out of my mouth. I am an expert who has just returned from overseas and does not know the situation, and even if I am really wrong, in the eyes of the public, I am just an expert turned brick. At most, I was asked to talk a few times. ”

"Once things deviate from our expectations and go in a bad direction, the people need a pillar of faith, and if that happens, you are the best person. When that time comes, I hope you can be a light in the night. ”

"Every time I make a little more effort, a large number of people will avoid infection, and I can do it with this belief."

"I don't know what the situation will turn out next, so I have to fight for a little leeway."

"We know that we can cause a catastrophe, and we can't stop it from coming, we have to find a way to stop it from spreading."

"The best way to dispel fear is to face it."

In the field of infectious diseases, little is known.

It's very complicated. In some cases, some pathogens, although they trigger antibodies, may still remain dormant in the patient's body for years or even a lifetime.

Like the famous "Typhoid Mary". It used to be believed that humans and germs were incompatible, and that either you killed the germs or the germs killed you, and one had to die in the end anyway.

Until Typhoid Mary appeared.

This is the first "asymptomatic infection" and "super-spreader" in human history.

But in fact, this may be just the tip of the iceberg.

In ancient China, there was a group of people known as the Heavenly Evil Lone Star.

When I lost my father and mother, when I was old, I lost my wife and my son, I lost my wife and then married my wife, and my wife died, and I returned my relatives and friends to neighbors, and I was fine, but I touched whoever died. How similar this kind of person is to Mary.

There are also pathogens that are very cunning. For example, chickenpox, it is not scary but very special, and some people may think that it will be safe for life if it comes out once, which is not scientific. It may regress into the nervous tissue for up to 50 years, and then wait until the infected person is malnourished, has a malignant tumor leukemia and other weakened immunity to become re-infected.

Its mutation may become complex, it may degenerate and disappear, it may not change or undergo other changes, and there are many types of mutations.

In the long run, it will develop in the direction of weak virulence and strong infectivity.

If the host is always killed, it will reduce the probability of reproduction, so the autogenous toxicity will be reduced after iteration. It is not intelligent in itself, and the so-called evolution is only the result of the selection of external factors for variation.

But those who died cannot be resurrected, and can only become a cold and cruel string of numbers in the journey of mankind to fight infectious diseases.

Meng Xi verified her identity on social media and sent a message.

[The pathogen isolated from the tissues of the deceased patient under an electron microscope can be confirmed to be a new virus.] This is a slow-onset but step-by-step intruder with a risk of human-to-human transmission.

It has a very short survival time in vitro, and crowd gathering provides an excellent opportunity for parasites to find new hosts.

My advice is to try to avoid going to crowded places.

Purchase certain food and daily necessities.

Purchase a certain number of masks and wear them when you go out. ]

[You must stop rubbing the heat immediately, or you will be expelled from the scientific research circle [smile].] ]

[You've just flown back from abroad, what do you know?] ]

[Spicy Chicken Brick House.] ]

[Now spread rumors to create panic, you are simply ill-intentioned.] ]

Meng Xi's colleagues couldn't stand it and refuted a few words for her.

[The money is gone, it is painful, the family members are very strong, not one of them is crying, and one can't help but laugh.] ]

[The coffin has arrived, come and cremate quickly.] ]

[There is no cost to spread rumors, and it breaks your legs to refute rumors.] ]

[You died, and died peacefully.] ]

[Do you still have basic academic ethics?] ]

[One penny per person, crowdfunding to buy you a coffin.] ]

Meng Xi's colleague's mind was basically blank. She was blown up by netizens and almost fainted. When it's time to eat, it's not too slow.

She asked Meng Xi: "Meng Xi, aren't you afraid?" Everybody says you're a rumor. ”

"You look so strategic...... Hold the cards in one hand. She can't do it, she has been researching this new infectious disease from the beginning, she has her own judgment, but under the overwhelming doubts, in her heart, she is actually a little worried.

"I trust my professional judgment and trust the judgment of the team. It is also possible that things will develop in an optimistic direction, at most it will be ridiculed for a few words of spicy chicken bricks, which is not a big deal. Meng Xi's tone was gentle.

"There are about a trillion cells in the human body, but there are 10 trillion symbiotic bacteria, and about 1~3% of the body weight in a healthy human body is bacteria."

"It is estimated that there have been at least 10,000 super-infectious diseases in human history, and these germs have killed the human beings who cannot resist, and only a small number of people have survived. Technology is advancing, and it's a good thing that people are no longer helpless. ”

"The number of small infectious diseases that have been eliminated by the human immune system and cannot coexist cannot be counted, it may be 100,000 times, it may be 1 million times, it may be more."

"I hope this menacing, sinister and cunning creature will be wiped out by the human immune system. People treat me like a brick family. ”

"But what if...... Your future ......," the colleague worried.

Meng Xi glanced at his colleague and continued: "I'm not sure, but some things always have to be done. For such a menacing new infectious disease, all of us are anxious and want to solve it urgently, but it is not so easy, and what we are doing now is just a blind man touching an elephant. ”

"All suffering will eventually pass, and from an evolutionary point of view, it will eventually develop towards weak virulence and strong contagion, please trust our professional judgment."

"I looked at some medical records, the patients suffered a lot, and all the words were insignificant in the face of human life! The patient's family will not even be able to see the patient for the last time. What is even more frightening is that the patient's wife is sick, the daughter is highly suspected of being infected, and the husband has mild symptoms. "When one person infects the whole family, it is a great suffering for a family.