What is a viral antigen?
The virus antigen is a toxin or other substance administered by a virus that causes an immune response to its host. Antigen is what causes common symptoms related to viral infection such as fever. Although the answers caused by the virus antigen may be unpleasant, they are often the first warning that there is something wrong in the body to take care of.
When the virus enters the body of a person or animal, it releases proteins, toxins or enzymes into the bloodstream. This can cause symptoms such as sore throat or cough, but also warn white blood cells for the presence of virus. The cells recognize the virus antigen as a foreign body and send signals to the brain to release more white blood cells. Once white blood cells, including killed cells, are released in higher numbers; They hunt and destroy viral cells.
This process is how the immune system recognizes the disease and acts to destroy it. Symptoms such as fever, swelling or pus in certain areas that the immune system does its job. ImmunuThe response caused by the virus antigen can also lead to swollen lymph nodes, rhinitis, inflammation and other symptoms such as mucus, neck, neck or chest.
The impact of viral antigen on the body varies depending on the type of virus. Some viral infections are more fatal and illegal much harder than others. Many children's diseases are caused by viruses, and these are generally unpleasant but easily deleted. Others, such as influenza, can produce antigens that cause more serious reactions. They are often treated with antiviral drugs to alleviate symptoms until the immune system can destroy the virus.
In some cases, viral antigen may not be released or may not be detected. This has an infection that does not cause symptoms or those that lie rather weeks, months or even years.Virus human immunodeficiency (HIV) often causes no discomfort or disease up to many years after exposice. This does not mean that HIV does not create antigen, but it does not lead to a strong immune response.
The immune response caused by the virus antigen is many times the most dangerous part of the virus. Although some viral infections damage themselves, the immune system itself causes symptoms so serious that they become deadly for an infected person. For example, the influenza can lead to extreme inflammation and overload in the lungs. This can be fatal for those who already have existing lung conditions or suppressed immune systems.