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Confusing question. Essentially, one way your body recognizes viruses by the antibodies it left behind the last time you were infected. Another is the sheer presence of something "different."

Antibodies (immunoglobulin) are Y-shaped proteins that are produced by plasma cells, and which have millions of variable. At each tip of the "Y" is an antigen binding site (paratope), in essence a lock. When your body comes into contact with a foreign pathogen or substance, the antibodies (epitopes) of the invader trigger the immune system to produce antibodies. the antibodies with paratopes that correspond to the epitopes of the invader are attached, and the invader is neutralized or killed.

The problem occurs when your body does notrecognize a virus or some other invader. At these times your body has no or reduced defense against the pathogen, and in serious cases (bubonic and pneumonic plagues, dengue and hemorrhagic fevers, ebola, haunta, super flues such as H1N1 or Swine Flu, and SARS) the immune system cannot fight it and becomes overrun.

Any invasion of the body by a foreign substance or pathogen automatically triggers an immune response. In very simple terms, the body produces what are called cytokines. Cytokine are cell-signalling proteins, peptides, and glycoproteins and are molecules that message the presence of any substance or pathogen they see as an invader. Cytokines are one of the first steps in the innate immune system, and can trigger the production of other cells, biochemicals, hormones, and other immunological responses that attack and work to remove the threat. How they mark and target invaders and initiate production of the various types of immunological response is still not very well known.

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โˆ™ 2011-10-07 18:46:11
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Q: How does your body recognize a virus?
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Related questions

How do body defenders recognize an enemy?

I'm not sure what you mean by body defenders but T-cells are the ones that recognize the enemy. The white cells get that and they kill the virus, bacteria, etc.

How do body's defenders recognize an enemy?

I'm not sure what you mean by body defenders but T-cells are the ones that recognize the enemy. The white cells get that and they kill the virus, bacteria, etc.

Why do you get some virus caused diseases only once?

Once you get a virus, your body builds its ammune system to protect against that same virus, so you won't get it again

What happens in your body of you are exposed to a virus for which you have been vaccinated?

Your immune system will, for lack of a better word, recognize the virus and quickly destroy it before it can start an infection.

How do the body's antibodies function?

Antibodies are produced by the body's immune cells that can recognize and bind to markers (antigens) on the outside of specific organisms, in this case the measles virus.

How can your body produce antibodies against dead viruses?

A virus doesn't have to be alive for the body to produce antibodies against it. Antibodies recognize the physical appearance of a virus. By using dead viruses the immune system is taught to look out for a live virus with the same characteristics of the dead one, but you don't risk being infected by the virus.

How does a virus recognize its host cell?

Proteins on the surface of a virus attach to the receptors on the cell membrane of the host cell.

How does a virus recognize a host cell?

he moves around and when he feels it, it gets in.

What is a virus in the body?

A virus is an infective agent that is microscopic that enters your body to do harm to it.

What the basic mechanism of vaccine?

To allow your immune system to recognize the modified virus to prevent yourself from getting the virus yourself

How does the human body prepare itself for a virus the the human has already fought?

Because the body has already experienced the virus, the body knows how to get over the virus.

How does antivirus recognize new viruses and worms?

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