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How Coronavirus Infect Your Body
As the coronavirus from Wuhan, China continues to spread across the globe, many more are becoming infected and some even dying. As of writing this post 3110 people have died and 92,000 confirmed cases with coronavirus worldwide.

What Is Coronavirus And How Coronavirus Infects Your Body?

Now we’re going to look at, how the coronavirus actually infects the body? What it does inside of you and then how it causes symptoms, spreads, how your body actually then fights it off or it causes death in some.

Corona viridae are actually an entire family of viruses that cause disease in mammals and birds. SARS, for example, was also a coronavirus. Now, viruses are interesting and that they are sometimes considered both living and nonliving things. They aren't made of cells but they do have the ability to replicate, just in a different way than other organisms. Oh! And they're actually much-much smaller than cells.

How Coronavirus Is Spreading?

Now, to contract the coronavirus you first have to come in contact with it, either through an infected person's respiratory secretions. So, a cough or a sneeze, through physical contact with them or by physically touching a surface that the virus is on and then touching somewhere like your nose or your mouth before washing your hands.

Function And Structure Of The Virus

Once the virus is able to enter your body it's work can begin. One thing that all viruses have in common is that they carry some kind of genetic material either DNA or RNA. In the case of coronavirus, it carries RNA, which has all the information the virus needs to replicate. The genetic information in a virus is typically surrounded by a protective capsid. Some type of virus that attacks bacteria also known as a bacteriophage. In the case of the coronavirus, the RNA is encased in a helical capsid and that helical capsid is actually encased in an envelope. It looks more like “A cell circular cell with hair like projection all around” and these projections coming out of the surface or the club-like structures are very important for what happens next.
Virus With Hair or Club Like Structure
Once the virus comes in contact with your cells, it binds to receptors on that cell. You can think of the outer layer of the virus is like a key, and if the virus has found the right cells in the right species, its keys are able to open the lock on these cells. As a result, the virus is able to enter, where it now has access to all the cells machinery. Now normally, this machinery is reserved for your own DNA, which uses something called ribosomes to make proteins that have all sorts of functions and travel all over your body. But the coronavirus ends up hijacking this system. It uses its own RNA to go to those ribosomes and starts making proteins that it wants.

So basically, your cell starts producing viruses by making the genetic material, by making the capsid and envelope and ultimately your cell becomes a virus making machine. And this is why viruses are often considered non-living because they don't actually have the machinery to do this work, they actually need your body's cells to do it. So, the coronavirus has its RNA instructions read over and over and makes protein after protein and ultimately can make millions of viruses. These viruses eventually fill the cell and make their way back to the cell membrane, where they break out often destroying the cell in the process. Once out, it's on to the next cell to repeat this cycle all over again.

Symptoms Of Coronavirus

Now, as your cells begin to get damaged and die your body will sense this and start to trigger an immune response and both of these things are what will create these symptoms that you begin to feel. In the case of the coronavirus, these symptoms include headaches, runny nose, coughing, sore throat and fever. Which is part of the reason why it's been so hard to track and understand because those are common symptoms, we feel those all the time, especially during flu season or just from getting the common cold. Medical professionals would need to do laboratory tests on respiratory specimens as well as blood work and blood tests to understand if your symptoms are coming from the Wuhan coronavirus.

Human Immune System Response

In a healthy individual the immune system will eventually realize that there's a foreign agent inside your body and mount an attack. The immune system is incredibly complex with the plethora of different mechanisms to take down your invaders. Your temperature increases, which helps your immune system function better and actually makes it a more hostile environment for the virus, you might create more snot and phlegm, which make it harder for the virus to attach to your cells and also help to get rid of dead viruses and immune cells. You may feel weak and tired as your body starts to prioritize fighting off this virus instead of doing your regular day-to-day activities and your bones may actually feel sore and ache and that's because they're actually making more white blood cells.
Also Read - Coronavirus Vaccine - How Scientists Are Trying To Develop?
For its mainline defence when the coronavirus is detected, the body triggers signals to start producing antibodies. These antibodies are created by your own DNA. There are essentially sections of code in each cell’s DNA that contained the instructions of how to build different defence systems.

Enzymes in the nucleus find the right section of DNA make a copy called messenger RNA or mRNA, which gets sent to the ribosome in your cells, which will read these instructions and start making the relevant proteins. With up to 10 million ribosomes in each cell, they become an antibody making Factory, which is sent outside of the cell to fight the virus.

The trickiest part for your body is that the immune response doesn't catch the virus right away. So, essentially the virus starts with an upper hand. This is why it can take so long for your body to fight off a virus. But for coronavirus, those with healthy immune systems should be able to fight off and rid the body of the virus within weeks. The problem is primarily for those who have compromised immune systems, which is often people who are elderly or people who are very young. This particular coronavirus has mostly affected the elderly and that's because as we age our immune systems become less effective and they actually slow down. As the virus continues to proliferate and cells continue to die in a desperate attempt to save your body, your immune system can go into overdrive.
Also Read - Can Her Team Create A Vaccine For Coronavirus?
In severe cases, white blood cells are responsible for activating a variety of chemicals, which can cause the leaking of fluid into your lungs and this combination of cellular destruction from the virus and fluid-filled lungs interrupts the transportation of oxygen into the bloodstream, which can lead to suffocation and organ failure. But the virus isn't always the cause of death often with a weakened and distracted immune system, other organisms like bacteria are able to take advantage of the body causing further complications.

As organs begin to shut down the whole body can as well. To reiterate it's the immunocompromise that are most at risk and even with that it's worth saying that the numbers are relatively low. If you think about it 40,000 people died of the flu in the US alone and more than two thousand people died and 2500+ cases registered in India last year. And over a million people died of heart disease.

On top of that, the death rate right now is being estimated between 2 and 3 per cent, which is continually evolving but a disease like SARS was a death rate of 10% and Ebola in some regions has been up to 50 per cent. All this to say don't allow the news to make you panic.

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