In fact, I feel quite strange to see this question, because I don't know what the topic is based on!

Later, I thought about it myself, which should be related to these three points!

First, due to the sudden outbreak and strong infectivity, the prevention and control strategy of isolating the whole people at home and reducing going out was adopted, and fewer people came to the hospital for common fever and cold.

Second, due to the sensitive period of the COVID-19 epidemic, many people are worried that they will be forced to isolate because of fever and pay more attention to their health, so the number of patients with colds and fever has also decreased;

Third, in fact, the number of patients with colds and fever is indeed less than before. Why? Quite simply, the common cold and flu are also caused by virus infection, and this is also a respiratory disease, which is the same as the main transmission route of novel coronavirus infection this time.

Therefore, while preventing and controlling the spread of COVID-19, we have actually blocked the transmission routes of the common cold and some influenza viruses. There will be no common cold and flu, and some people will get infected and get sick when they arrive.

However, regardless of the outbreak or not, it is wrong to say that the cold is cured. Let's just say that fewer people have colds than before.

Why can't a cold disappear like smallpox? First of all, let's think about how smallpox was defeated by us humans. Have we found a special drug to kill it?

No, but the emergence of effective smallpox vaccine! From the perspective of infectious diseases, it protects susceptible people. We humans produce an antibody on us through smallpox vaccine, so that smallpox can't become a demon on us. As we all know, viruses cannot survive independently and must be placed in the host. So the virus will slowly die.

Then, why can't a cold disappear like smallpox by inoculating corresponding antibodies?

It's simple!

First of all, there are many reasons for colds, including bacteria and viruses. Bacterial, we can use antibiotics to sterilize, but most colds are caused by viral infections, such as rhinovirus, adenovirus and influenza virus.

So many viruses, if you want to make a vaccine, you have to make a variety, and then it's no big deal, just destroy it!

The key is that vaccines can't keep up with the speed of virus mutation, and not all vaccines can produce lifelong immunity after being injected into our bodies!

The most common flu, flu, has existed now, but we can all find that every winter and spring, we still have to face the flu, and people die of it every year, such as the United States. Since last September, the number of people who died of influenza has approached 20,000!

Think about it, everyone has the flu vaccine, and oseltamivir, a special anti-flu drug. Why do so many people still die of the flu in America?

In fact, the most important thing is the variation of influenza virus. Antiviral drugs lag far behind antibacterial drugs. The main reason is that the research and development of antiviral drugs can't keep up with the rhythm of virus mutation.

We have developed antiviral drugs for this influenza virus today, and new influenza viruses may appear in the next step;

We now have vaccines to prevent several influenza viruses, but we still can't 100% avoid influenza virus infection, because it may mutate and appear new types, which the current vaccines can't prevent.

Moreover, the current influenza vaccine can only protect you 10 months from infection, and prevent the known influenza virus. After that, the antibody in the body will drop and lose its protective effect. You will still be infected if you don't fight next year!

Most importantly, rhinovirus, adenovirus and influenza virus that cause colds now are all viruses that we human beings are born with. You don't know where they are, but they will always appear at some point.

So the epidemic may pass, but it is impossible for a cold to pass, and it doesn't matter if it doesn't pass. After all, it is a self-limited disease, and the average person's common cold can heal itself in 7- 10 days!

There is a correlation between epidemic situation and cold, but there is no causal relationship between them.

It is a typical attribution error to think that "the epidemic has come and caused the cold to disappear", which is exactly the same as the conclusion that "smoking can kill the virus" The most classic case is "survivor bias".

Therefore, we should understand the following points:

Just because you don't see someone catch a cold doesn't mean they don't. Before the outbreak, the symptoms of cold were mainly external, such as cough, sneezing, runny nose, etc. These symptoms were obvious and easy to find. However, after the outbreak, many people wear masks, and even if they catch a cold, it is not easy to be found.

There is a bigger reason, because the epidemic is coming, most people are hiding at home, and you see less than 90% people. In terms of probability, fewer people will see you catch a cold.

But in fact, many people caught a cold during the epidemic. Not to mention, my wife has a cold, but it's just a common cold. It will be fine in a few days. It's just that others don't know, so there's no need to advertise it widely.

The epidemic situation is related to colds, but it is not causal. The epidemic is coming, and everyone stays at home. If it's just a common cold, the symptoms are not so serious, and everyone is afraid to go to the hospital. The reason is simple: going to the hospital will increase the risk of cross infection. It is safer to stay at home.

In other words, because of the epidemic, some common colds often choose to take medicine at home or "self-heal", but this does not mean that the cold will be fine.

From the time point of view, it is true that after the epidemic, there are fewer cases of seeing colds, but this is only a superficial phenomenon. Just because two things happen one after another does not mean that there is an inevitable causal relationship between them.

The epidemic situation has made people pay more attention to physical protection, which may be a factor leading to the reduction of colds. Of course, we should also see that because of this epidemic, we pay more attention to personal hygiene and physical health, and have developed good habits of washing hands frequently, opening windows for ventilation, and wearing masks when going out.

It is precisely because of the formation of these good habits that the probability of suffering from the common cold may be reduced objectively, and there is no need to see a doctor or take medicine. Although I have no data to support this conclusion, it is entirely possible.

So to sum up, the statement that "the cold disappeared after the epidemic came" in the title is not rigorous. There is a certain correlation between the two, but it is not a direct causal relationship, because colds are not really less, but fewer people go to the hospital to see a doctor, and people pay more attention to self-health protection.

This epidemic has focused people's attention on this infectious disease, so it will make many people have an illusion that they have rarely seen a cold since novel coronavirus came.

However, this is not the case. I believe many people caught a cold during the epidemic. Novel coronavirus overlaps with symptoms of cold, such as cough, fever, muscle aches, stuffy nose, runny nose, etc. Many people were quickly taken to hospital for isolation when they developed symptoms of fever. In order to effectively control the progress of the epidemic, many places would rather kill 3 thousand by mistake than let one go.

During the epidemic, many people still caught a cold, but many people were afraid of being isolated. Although the state provides free medical care for such patients, many people are lucky, and isolation for 14 days will make them unacceptable, so they simply keep it a secret. If you have a little fever and headache, solve it yourself first. Just drink some antipyretics and painkillers, or go to the hospital. Let me talk specifically about why there is an epidemic and the feeling that the cold is gone.

1. Travel is obviously limited, reducing the occurrence of colds;

In the past, it was impossible for people to stay at home honestly around the Spring Festival. They will definitely take to the streets, have parties and go to busy places. We need to understand that colds are contagious. If a person has low immunity and often goes to crowded places, he is likely to catch a cold. However, the emergence of this epidemic has greatly restricted our travel, and we need to register and measure our temperature when we go home. These inconvenient trips and serious epidemics also make everyone stay indoors. If you go out less, you are less likely to catch a cold.

2. Relatives stay together for a long time, and many people's moods will get better: now people's life pressure is relatively high, and many people go out to work before reaching 15 every year, just to earn more money to improve family conditions and quality of life. However, with the arrival of this epidemic, many people have to postpone their work, so they will stay at home for a long time, which will prolong their contact with their relatives. Those older people must be in a better mood and have better natural immunity, so they will be at risk of infection.

Maybe you don't understand what I wrote. Although people are generally susceptible to novel coronavirus, the main high-risk group is 45-60 years old. If people of this age are well controlled, the epidemic control will be significantly improved.

Imagine that if all our children go out to work and leave only their parents at home, they will definitely be in a bad mood for a while, so their immunity will decline to a certain extent, and the acceleration of social rhythm will greatly reduce the time we spend with our parents.

Anyone who has a cold must try not to say anything: during the epidemic, we all stay at home, and the chances of contact with others are obviously reduced. Originally, everyone was worried about the epidemic. Who caught a cold and publicized it everywhere? I can hide what I can, and if I can't, I'll seek professional treatment.

Because novel coronavirus's symptoms are similar to a cold, it is necessary to report a fever, but for various reasons, many people still don't want to isolate him if he has a fever.

Who said that after the pneumonia epidemic in COVID-19 came, the cold and fever disappeared, yes, but this cold and fever was different from usual:

First of all, if you have a cold and a fever, you must go to the hospital at once. But now there is an epidemic outside, so many people choose to buy some cold medicine and fever medicine to eat at home.

Secondly, I really have a cold and a fever, so I dare not come out now, because the symptoms are too similar to pneumonia in COVID-19. If I come to an outsider, everyone will hide, and there will be a lot of them. I will definitely call the police. So, I really had a cold and a fever, and people were afraid to go out.

Third, even the most common cough is restrained. No matter how much you cough, people around you, a few meters away from him, want to push him away.

Moreover, let's just say that in just a few days, Beijing's two major children's hospitals have treated hundreds of children with fever, among which several cases of COVID-19 pneumonia were diagnosed and more than 20 cases were suspected.

Look, there are still many people with colds and fever. And the turn of winter and spring and beginning of spring are the seasons with frequent colds and fevers. But because of the above three reasons, we can't see people with colds and fever, but we can't see them, not without them, so there are still many.

The last reason: everyone stays at home, and the probability of catching the flu is much lower.

There must be a cold, which is our "chronic disease". Because of COVID-19, how can there be no cold germs? Therefore, someone at home usually has a cold. If it is a slight fever, as long as there is no dry cough and no weakness, it will not feel very uncomfortable. Generally speaking, it can be judged by experience that it is a common cold. Just take some cold medicine at home. Of course, if you want to relieve symptoms after taking cold medicine, it proves that your judgment is correct. If the symptoms are not relieved after taking cold medicine, you should go to the nearest hospital for examination.

During the epidemic, if someone catches a cold, it will also cause their own panic. Actually, it's not necessary During the epidemic, many people caught a cold because of the increasing temperature difference between morning and evening during the Spring Festival. Of course, the symptoms of a cold will have some slight cough, and some will be accompanied by a low fever. Others may feel weak. This will make many people panic. Think he has COVID-19. Insist on going to the fever clinic for examination.

In fact, this is a bit too much, because colds are very common at ordinary times and often happen when the weather changes. How can I go to a fever clinic if there is an epidemic? Actually, if you ask me, I can't hide it! Think about it, you had nothing to do, and you had to go to the fever clinic because of a little cold. If you happen to meet real virus carriers, you will go with them. What a injustice you have caused!

Most smart people don't go to the hospital easily in this extraordinary period, so the cold seems to have disappeared. Indeed, smart people will judge their physical condition. Of course, it is mainly for us to judge the condition ourselves. After taking relevant drugs, the symptoms should be alleviated, which should be clear. If the symptoms persist, you should go to the hospital even if you take cold medicine. Because at this time, you still need a professional doctor to make a diagnosis.

If the symptoms are relieved after taking the medicine, don't worry too much. Combined with your travel history, it is easy to determine whether your discomfort is caused by a cold.

So we have the ability to judge ourselves that we have a cold and don't need to go to the hospital. Then the recent feeling is naturally that there are no cold patients!

Hello, everyone, I'm Beijing city expert @ Beijing Faner. You can ask me any questions about Beijing.

Cold is a very common disease in our life, and it is always around us. Since the outbreak of the novel coronavirus epidemic, people's attention has been highly focused on the prevention and control of the epidemic. Even many people will think that they are infected with novel coronavirus when they hear the sound of cough and fever, which is also the reason why everyone has the illusion of getting over a cold.

What we usually call a cold mainly refers to the common cold, which is an upper respiratory infection caused by a variety of viruses. The incidence rate is very high, with an average of 0-6 times per year for adults and 6-8 times for children. This disease often occurs when human immunity is reduced. Cold, fatigue and sudden drop in temperature are common reasons. The disease is weakly contagious, does not cause epidemic, and the course of disease is self-limited. Even without treatment, it can heal itself in a week or so. Common symptoms of colds are mainly local symptoms, such as stuffy nose, runny nose, sneezing, coughing, itchy throat and sore throat. Most patients have no fever or other systemic symptoms, and a few patients may have low fever.

Novel coronavirus is different from a cold, which is caused by infection in novel coronavirus. This disease is highly contagious and people are generally susceptible. Common symptoms are fever, dry cough and fatigue. Some patients have symptoms such as nasal congestion, runny nose, sore throat, myalgia and diarrhea. Severe patients often have dyspnea and/or hypoxemia one week after onset, and severe cases quickly progress to acute respiratory distress syndrome, septic shock, refractory metabolic acidosis and bleeding dysfunction. Most patients have a good prognosis after infection, but for the elderly or those with chronic diseases, the probability of serious or critical illness after infection is high. The blood routine examination of this disease often shows abnormal decrease of white blood cells and lymphocytes, while the typical imaging manifestations are early multiple patches and interstitial changes, especially in the lungs. Then it developed into multiple ground glass shadows and infiltration shadows in both lungs. In severe cases, lung consolidation can occur, and pleural effusion is rare. Novel coronavirus infection is mainly diagnosed by virus nucleic acid examination, virus gene sequencing or antibody examination. Once diagnosed, isolation treatment is needed.

Everyone should correctly understand that people with symptoms such as cough and fever, especially those who have had contact with the confirmed population or have been to areas with high epidemic rates, should actively seek medical treatment and make a clear diagnosis. However, don't worry too much. At present, the epidemic situation in novel coronavirus has been well controlled, and most of the cases are imported cases. Everyone should do a good job of personal protection and must not take it lightly.

Hello, I'm empty mother.

Why did the cold disappear after the epidemic came? This problem, empty mother thinks there are several reasons:

1. During the epidemic, everyone paid great attention to health problems, so the probability of catching a cold was much less than usual.

One more thing, most people were isolated at home during the epidemic. You know, many colds are also contagious. The fewer people you contact, the lower the infection rate.

During the epidemic, everyone did a good job in cleaning and protection, such as wearing masks and washing hands frequently. These details of life have also largely avoided the occurrence of colds.

I am an empty mother-parenting is a tedious and long-term thing. May we work together to make children and parents better and better.

Because of the communication between winter and spring, the flu has not completely passed, and all kinds of pneumonia and viruses are rampant. As the weather gets warmer, hand, foot and mouth disease and herpetic angina will snowball all over kindergartens.

but ...

Go to Wuhan to unseal this Spring Festival. Because of the epidemic, everyone was isolated at home.

The number of outpatients declined in a cliff-like manner, and soon after the isolation, the number of daily outpatients dropped from several hundred to dozens.

Why is this?

Because our pediatric patients are mainly infectious diseases:

Pneumonia, enteritis, herpes, hand-foot-mouth disease, upper respiratory tract infection (commonly known as cold) ...

And these, the source of infection and route of transmission between them are the same as those in COVID-19, but the infectivity is not so strong and the consequences are not so serious.

The series of measures we have taken to stop the epidemic in COVID-19 are also useful for all other bacteria and viruses.

Why did the cold disappear after the epidemic came? Did you really not go to the hospital for examination, or did you destroy it at home? To sum up, it should be related to these six points!

First, due to the sudden outbreak and strong infectivity, the prevention and control strategy of isolating the whole people at home and reducing going out was adopted, and fewer people came to the hospital for common fever and cold.

The epidemic situation is related to colds, but it is not causal.

The epidemic is coming, and everyone stays at home. If it's just a common cold, the symptoms are not so serious, and everyone is afraid to go to the hospital. The reason is simple: going to the hospital will increase the risk of cross infection. It's safer to stay at home.

In other words, because of the epidemic, some common colds often choose to take medicine at home or "self-heal", but this does not mean that the cold will be fine.

Secondly, due to the sensitive period of COVID-19 epidemic, many people are worried that they will be forced to be isolated because of fever, and they will pay more attention to their health. They are afraid to go to the hospital for fear that the fever clinic will be regarded as COVID-19;

From the time point of view, it is true that after the epidemic, there are fewer cases of seeing colds, but this is only a superficial phenomenon.

Third, the protection is done. In fact, the number of patients with colds and fever is indeed less than before. Why? Quite simply, the common cold and flu are also caused by virus infection, and this is also a respiratory disease, which is the same as the main transmission route of novel coronavirus infection this time.

Fourth, everyone attaches importance to the improvement of immunity.

There are many colds and fevers. And the turn of winter and spring and beginning of spring are the seasons with frequent colds and fevers. But because of the above three reasons, we can't see people with colds and fever, but we can't see them, not without them, so there are still many.

Learned non-drug therapy, even if it is a cold, early treatment, cold will be fine. I didn't go to see a doctor until I got pneumonia or had repeated fever and cough.

But in fact, many people caught a cold during the epidemic. Not to mention, I have a cold, just a common cold. Take vitamin C and green antibiotics for 2 days, and you'll be fine. It's just that others don't know, so there's no need to advertise it widely. You said you had a fever and a cough. People will report you.

Fifth, I dare not catch a cold.

Just because you don't see someone catch a cold doesn't mean they don't.

Before the outbreak, the symptoms of cold were mainly external, such as cough, sneezing, runny nose, etc. These symptoms were obvious and easy to find. However, after the outbreak, many people wear masks, and even if they catch a cold, it is not easy to be found.

At the time of the epidemic, Hansheng had become an underground worker.

Do you dare to sneeze in crowded places?

Dare you go to the hospital clinic and say that you have a fever?

Dare you go to the drugstore to buy antipyretics and anti-inflammatory drugs?

If you dare, get ready for isolation!

Maybe on the way to isolation, you will be cheated.

Maybe you accidentally upgraded during the suspected detection.

Therefore, I dare not catch a cold.

There is a bigger reason, because the epidemic is coming, most people are hiding at home, and you see less than 90% people. In terms of probability, fewer people will see you catch a cold.

Therefore, while preventing and controlling the spread of COVID-19, we have actually blocked the transmission routes of the common cold and some influenza viruses. There will be no common cold and flu, and some people will get infected and get sick when they arrive.

However, no matter whether the epidemic appears or not, it is wrong to say that the cold is over. Let's just say that fewer people go to the hospital with colds than before.

The cold virus will not disappear.

Why can't a cold disappear like smallpox? The key is that vaccines can't keep up with the speed of virus mutation, and not all vaccines can produce lifelong immunity after being injected into our bodies!

The most common flu, flu, has existed now, but we can all find that every winter and spring, we still have to face the flu, and people die of it every year, such as the United States. Since last September, the number of people who died of influenza has approached 20,000!

Think about it, everyone has the flu vaccine, and oseltamivir, a special anti-flu drug. Why do so many people still die of the flu in America?

In fact, the most important thing is the variation of influenza virus. Antiviral drugs lag far behind antibacterial drugs. The main reason is that the research and development of antiviral drugs can't keep up with the rhythm of virus mutation.

We have developed antiviral drugs for this influenza virus today, and new influenza viruses may appear in the next step;

We now have vaccines to prevent several influenza viruses, but we still can't 100% avoid influenza virus infection, because it may mutate and appear new types, which the current vaccines can't prevent.

Moreover, the current influenza vaccine can only protect you 10 months or so from infection, and prevent the known influenza virus. After that, the antibody in the body will drop and lose its protective effect. You will still be infected if you don't fight next year!

Most importantly, rhinovirus, adenovirus and influenza virus that cause colds now are all viruses that we human beings are born with. You don't know where they are, but they will always appear at some point.

Therefore, this epidemic may pass, but the virus has existed for a long time.

It is impossible to get over a cold, and it doesn't matter if you can't get through it. After all, it is a self-limiting disease. Most people's common cold can heal itself in 7- 10 days!

This also illustrates from the side:

After this epidemic, we also want to know:

The epidemic situation has made people pay more attention to physical protection, which may be a factor leading to the reduction of colds.

Of course, we should also see that because of this epidemic, we pay more attention to personal hygiene and physical health, and have developed good habits of washing hands frequently, opening windows for ventilation, and wearing masks when going out.

It is precisely because of the formation of these good habits+the improvement of health management awareness = taking less medicine when you are sick, which may objectively reduce the incidence of the common cold, and you don't need to see a doctor or take medicine.

COVID-19 and the common cold have similar onset seasons and symptoms, but the difference is that COVID-19 is highly contagious and has a high risk of death, so it needs to be prevented and controlled. So, why did the common cold disappear after the outbreak in COVID-19? Next, medical science will analyze it for you.

First of all, we need to correct one thing. During the epidemic, the common cold did not disappear out of thin air, but the number of patients declined, mainly due to strict prevention and control measures. The pathogens in COVID-19 are classified as viruses, and the common cold is mostly caused by viruses, so the transmission routes are similar. The prevention and control measures we take can not only prevent COVID-19, but also prevent cold virus: wearing a mask and keeping a distance of more than two meters from people can reduce the risk of respiratory droplets spreading; Avoiding staying in a relatively closed space for a long time and keeping indoor ventilation can reduce the risk of aerosol transmission; Washing hands before meals and disinfecting the surrounding environment can reduce the risk of contact and transmission. Compared with COVID-19, the transmission route of common cold virus may be only one or two, and its infectivity is not as strong as that of COVID-19. Therefore, the prevention and control measures we take during the epidemic can greatly reduce the risk of the common cold.

Different from COVID-19, the cold virus may exist widely around us, and the reason why we seldom catch a cold during the epidemic period is related to the strength of immune function besides not being exposed to the virulent cold virus. Immune function plays an important role in the process of cold onset: strong immune function, but weak virulence of cold virus, small number of viruses, usually rarely catching a cold; If the immune function is low, even if the cold virus is weak and the number of viruses is small, you may catch a cold. During the epidemic, we have no work pressure, seldom stay up late, feel comfortable, have balanced nutrition and seldom catch a cold, so our immune function is in good condition and we can beat the common cold virus. But in contrast, frontline epidemic prevention personnel have a higher risk of catching a cold, because their workload is heavier, their rest time is less, and their immune function is reduced; However, influenza, common cold and COVID-19 occur in the same season, which is highly contagious and toxic, so more people are infected in the United States.

To sum up, cold patients do not disappear out of thin air during the epidemic, but the number of patients decreases, which is closely related to effective prevention and control measures. At the same time, people's immune function is in a good state, so their ability to resist cold virus is enhanced.

Thank you for reading!

Please correct me if there is anything wrong! Welcome to the comment area for consultation and exchange!

Note: The content of this article is only used as health science, not as medical advice or opinions, and does not have medical guidance conditions.

Winter is a season of frequent colds. I wondered before, why did the cold disappear?

In previous years, there were not enough infusion beds on the second floor of a clinic here, which was overcrowded. Naturally, it disappeared this year, and the clinic was closed.

In fact, if you think about it carefully, the reason is relatively clear.

Fever and cough have abated this year, and the symptoms of cold have a high coincidence with those of COVID-19. I dare not catch a cold. That's true.

There are common cold (wind chill) and influenza.

For the common cold, it is mostly caused by alternating cold and heat. In this special period, we all pay special attention to the fact that the chances of catching a cold are naturally much less.

Influenza is also an infectious disease, and its transmission route is similar to that of COVID-19, such as coughing, sneezing and spitting. Good habits such as wearing a mask, washing hands frequently and ventilation frequently cut off the transmission route of the virus. Naturally, there are fewer. During the Spring Festival, people's close contact activities such as home life, consumption, shopping, travel and tourism are greatly reduced, and the probability of virus transmission is also greatly reduced. Natural flu is rare.

To sum up, there are indeed fewer colds.