What happens in the body when it is attacked by the coronavirus?

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What happens in the body when it is attacked by the coronavirus?
What happens in the body when it is attacked by the coronavirus?

The new coronavirus, COVID-19, has been little studied. And although scientists from all over the world have taken up its study, they still need time. Today, there is a search for a vaccine that could stop the spread of the virus, new tests with increased efficiency are being created, doctors are studying the consequences after recovery, and so on. You and I can only watch this process and wait for good news. However, the enemy must be known by sight. In today's article, I will tell you what happens to our body literally on the fingers when the coronavirus enters it. We will go through all the stages and understand: how it works and what our body can oppose to it.

This article is based on statements by doctors and researchers who are studying the new coronavirus today. And although in some cases the course of the disease can occur individually, the main symptoms and stages of the disease occur in a similar way.

How does the coronavirus get infected?

It's pretty simple. The virus enters our body through the mucous membrane of the nose, eyes or mouth. Our body is designed in such a way that, on average, a person touches his face more than 20 times per hour. We scratch our nose, eyes, ears, adjust our hair, etc. If a virus is on the hands, then upon contact with the mucous membrane, it quickly enters the body and reaches the back of the pharynx. We can also inhale the virus if someone sneezed or coughed next to us.

Initially, the virus is fixed in the larynx, and then descends into the bronchi and lungs

Due to its structure (thorns in the form of a crown), it is firmly fixed on the cell membrane and literally "bites" into it, forcing it to create copies of itself. Thus, the virus is gaining strength to continue its "journey" through our body.

The incubation period is on average about 5 days (the time after which a person begins to feel the symptoms of the disease). There are cases when the first symptoms began to appear only after 2-3 weeks.

The first symptoms are considered to be dry cough. This is how the body reacts to irritation of cells attacked by the virus.

What Happens to the Lungs During Coronavirus

Continuing to multiply, the coronavirus descends lower into the bronchi and lungs and attaches to two types of cells: some produce mucus (goblet cells), others participate in the movement of this mucus and trigger an immune response to the appearance of dust particles, pollen, microbes and viruses (ciliated cells). At this point, the person's immune system begins to fight the virus. For us, this is manifested by an increase in temperature, inflammation, general weakness, etc.

If our immunity is strong enough and there are no serious chronic diseases in the body, then in about a week the virus will be defeated, and we will get immunity from it. True, scientists have recently recorded cases of re-infection, but they are isolated and, possibly, caused by the fact that the patient did not fully recover or contracted a new strain (a type of virus).

But if something went wrong (such cases are a minority), then our immune system begins to react too actively. Why is this happening, doctors do not yet know. If you do not go into medical terms, then our immunity gives too powerful a response to the virus and, as a result, affects not only it, but also healthy cells of the body (this process is called cytokine release syndrome). In general, a young and healthy body is able to cope with this, which cannot be said about an elderly or weakened one. Complications from this process can be fatal.

IMPORTANT: Youth is not a sign of a healthy body.If you lead an unhealthy lifestyle: smoke, drink, use drugs, then your immunity is weakened and you are at risk. Only our immunity can cope with the coronavirus, remember this.

At this stage, the patients develop shortness of breath. This is due to the fact that it is increasingly difficult for oxygen to enter our body through the mucous layer. The pulmonary alveoli fill with fluid and pus. Breathing becomes difficult to the extent that mechanical ventilation (artificial lung ventilation) may be required. In the most severe cases, the patient is connected to ECMO. It is a device that pumps blood through an artificial lung and oxygenates it.

Complications of coronavirus

Perhaps the most dangerous complication is acute respiratory distress syndrome. With it, the amount of fluid that accumulates in the lungs is such that the body stops receiving enough oxygen and dies. Insufficient oxygen can also lead to kidney failure, which purifies the blood, or destruction of the intestinal mucosa.

Another cause of death is an overreaction of the immune system, which can harm the entire body (overreaction of the immune system). There can also be septic shock, in which blood pressure drops so much that human organs begin to fail.

It must be understood that if the immune system ceases to cope with the virus, then it weakens so much that it is unable to resist other infectious diseases of a person. That is why chronic diseases become a common cause of death from coronavirus, regardless of the patient's age.

To date, there is no cure for the coronavirus. All doctors can do is fight and alleviate the symptoms caused by the disease. The best way to keep yourself and your loved ones safe is to stay at home.

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