What is flu antigen?
Influenza antigen is a piece of influenza virus that is used to produce a flu vaccine. On the surface of the virus there are two types of pieces that serve as antigens or substances that cause antibodies. Antibodies are produced by the immune system to neutralize foreign substances in the body.
In the United States, flu or flu, it is considered to be the seventh main cause of death. It causes a lot of suffering, lost work and hospitalization. There are regularly global pandemics. These are the outbreaks of new types of influenza, to which people have no resistance that have spread rapidly. Such outbreaks can kill tens of millions of people. This happened three times in the twentieth century.
In order to try to prevent contractual flu, many people get the flu every year. In fact, it is an inactivated material of viral particles that are introduced into the body of the injection. The immune system of the body recognizes flu antigens as strange and produces ants against them. The immune system remembers that youThese antigens are alien and respond quickly to the neutralization of the influenza viruses that try to give the person. The influenza prevents infection only if there has been a specific tension that attacks the person.
The population of influenza viruses is constantly evolving. It is therefore a prediction that the tribes of the flu will expand in the coming year. The vaccine is designed by the World Health Organization (WHO) and contains three different flu tribes. One of them is influenza B, less virulent type and two are different flu tribs A. They were flu and trunks, which were responsible for the swine flu 2009 and the Spanish flu from 1918.
vaccines are produced in chicken eggs using particles of the entire virus. Antibodies that give support to the immune system VEVIRUS, which is found on its surface. Every flu antigen is a protein. One is called haemaglutinin and binds the virus to the infected cell. The second is neuramInidase , which is involved in the processing of sugars on the cell surface. This protein is the aim of drugs that heal the flu.
Vaccines made with antigens for these specific flu strains are effective against viruses used to produce vaccines. However, they will not be effective against viruses that have mutated and changed the structure of their antigens. There may be two types of changes in antigens. Flu antigen can mutate and change its shape or create a new type of virus with mixed antigens from different types of virus. This is more serious, because it often results in brand new trunks that people have no resistance.
Antigen detection study is used to identify outbreaks and decide whether a person is infected with Virnás flu and whether antiviral drugs should be used. Older tests used antibodies for the types of flu antigen to determine whether the virus was present. These, albeit accurate, could be time consuming. Rapid diagnostic tests (Ridt) have recently developed that could bring the privilegeLEDs within half an hour.
With fast -excess diseases that are easy to spread, such as the flu, it is always a race to try to stay in front of the latest viral tribe. The influenza virus lives in alternative hosts such as birds, pigs and even seals. It can suddenly spread to a new species. Even the standard seasonal flu kills a large number of people every year, and the pandemic of a highly virulent tribe could pose a serious threat to human health.